Van der Woude syndrome is a genetic condition that affects the lips, mouth, and face. People with Van der Woude syndrome often have lip pits, cleft lip, cleft palate, or both, and may have feeding or speech issues in infancy and childhood. It is lifelong, but many features can be improved with surgery, speech therapy, and dental or orthodontic care. Most people with Van der Woude syndrome have a typical life span, though care needs vary by severity. If you or a loved one is facing Van der Woude syndrome, coordinated care from craniofacial, ENT, dental, and speech teams can support daily life and development.
Overview
Van der woude syndromeSymptoms
Van der Woude syndrome features lower-lip pits and often a cleft lip and/or cleft palate. People may have missing teeth, saliva leakage from the pits, and feeding or speech difficulties related to the palate.
Outlook and prognosis
Many people with Van der Woude syndrome lead full lives, attend school and work, and have typical life expectancy. Outlook improves with early care for cleft lip/palate, feeding, speech, and dental differences. Most children do well after staged treatment and follow-up.
Causes and risk factors
Van der Woude syndrome results from a single-gene change, most often in IRF6, sometimes GRHL3. It’s usually inherited in an autosomal dominant pattern, though new mutations occur. Risk rises when a parent is affected; environmental factors mainly modify severity.
Genetic influences
Genetics is central in Van der Woude syndrome; most cases result from inherited changes in the IRF6 gene, often passed in an autosomal dominant pattern. A single altered copy can cause features, though severity varies. New (de novo) variants also occur.
Diagnosis
Diagnosis of Van der Woude syndrome is usually clinical, based on lower lip pits and cleft lip or palate. Family history may support it. Genetic testing can confirm, providing the genetic diagnosis of Van der Woude syndrome.
Treatment and drugs
Treatment for Van der Woude syndrome focuses on the specific features you or your child have. Care often includes lip and palate repair surgery, dental and orthodontic treatment, speech therapy, and support for feeding or hearing as needed. A coordinated team guides timing and follow-up.
Symptoms
People with Van der Woude syndrome often have visible changes of the lips and mouth from birth. For many people with Van der Woude syndrome, this shows up as small pits on the lower lip and a cleft lip and/or a cleft palate. The early features of Van der Woude syndrome can affect feeding and speech in infancy, and teeth as they come in. Some relatives may have only subtle lip pits, while others have a wider range of features.
Small depressions or openings on the lower lip are common. They may leak clear saliva, leaving a small wet spot or crust. These can be the only visible sign in Van der Woude syndrome.
A gap in the upper lip is present from birth and may affect one or both sides. It can change the shape of the nose and make feeding more challenging. Early repair is typical, and a care team guides timing.
An opening in the roof of the mouth can involve the soft or hard palate. Liquids may come through the nose, and ear fluid problems are more likely. This feature is part of Van der Woude syndrome for many families.
Newborns may struggle to latch or keep suction with a cleft lip or palate. Special bottles and positions can help reduce effort and support weight gain. Care teams watch growth closely in the first months.
How people usually first notice Van der woude syndrome?
Many families first notice Van der Woude syndrome when a newborn has a small pit or dimple on the lower lip, a cleft lip or cleft palate, or both; lip pits are a hallmark that help doctors recognize it quickly. Sometimes the first signs of Van der Woude syndrome are subtler, such as a baby having trouble feeding due to an opening in the palate or a child’s teeth coming in late or missing, which prompts a dental or ENT evaluation. If neither parent has obvious features, a clinician may connect the dots after examining the baby, reviewing family history, and, if needed, ordering genetic testing to confirm how Van der Woude syndrome is first noticed.
Types of Van der woude syndrome
Van der Woude syndrome is a genetic condition with a few recognized clinical variants that can shape how features show up from person to person. Most people share core traits—like lower-lip pits and a cleft of the lip and/or palate—but the mix and severity vary, even within the same family. Clinicians often describe them in these categories: classic Van der Woude syndrome versus the related popliteal pterygium syndrome, both most often linked to the IRF6 gene. Knowing the types of Van der Woude syndrome can help set expectations about which features are more likely and how they may differ across relatives.
Classic VWS
This form typically includes one or more lip pits and a cleft lip, cleft palate, or both. Dental differences such as missing teeth and wide spacing are common. Hearing issues from middle ear fluid can occur in childhood.
Popliteal pterygium syndrome
This related variant adds webbing behind the knee and may include skin folds, nail changes, or genital differences. Lip pits and clefting overlap with classic VWS, but extra skin and limb findings are more likely. Some may also have small skin tags or oral adhesions.
IRF6-negative cases
A smaller group has the same clinical picture but no detectable change in the IRF6 gene. Features can mirror classic VWS, making genetic testing important for confirmation. Other genes are being studied but are less commonly involved.
Variable expressivity
Families often see a wide range—from subtle lip pits to a complete cleft lip and palate—across relatives with the same variant. Not everyone will have a cleft, and some may show only dental changes. The balance of symptoms can shift over time.
What genetics can tell you about symptoms
Cleft lip or palate and small pits on the lower lip are common when IRF6 gene changes disrupt facial fusion during early development. Some variants also cause missing or small teeth and, less often, limb or heart differences, with severity varying even within families.
Causes and risk factors
Van der Woude syndrome stems from a genetic change that is present from birth. Most cases involve the IRF6 gene, and some involve GRHL3, whether inherited or new. Family history is the main risk factor for Van der Woude syndrome, and an affected parent has a 50% chance of passing it on. During pregnancy, smoking or low folate may influence whether a cleft occurs or how severe it is, but they do not cause the syndrome. Doctors distinguish between risk factors you can change and those you can’t.
Environmental and biological risk factors
Van der Woude syndrome usually starts from differences present very early in development, so most risks are set before birth. Doctors often group risks into internal (biological) and external (environmental). Environmental risk factors for Van der Woude syndrome are not well defined, and most evidence comes from research on cleft lip and palate in general. Below are biological and environmental elements studied for possible links, noting where the connection to this condition is uncertain.
As paternal age rises, random changes during sperm development become more common. This can slightly increase the chance of a rare condition starting for the first time. A specific increase for Van der Woude syndrome has not been confirmed.
Diabetes present before pregnancy is linked to higher rates of cleft lip or palate overall. It has not been proven to specifically raise the odds of Van der Woude syndrome.
High-dose vitamin A–derived medicines taken early in pregnancy can cause birth defects, including oral clefts. These exposures can mimic some cleft-related features but represent a different cause.
Using valproate in early pregnancy increases the risk of oral clefts and other differences in development. The effect is general rather than specific to a single named syndrome.
Genetic risk factors
Van der Woude syndrome often runs in families, so questions about who else could be affected naturally come up during family planning. The main genetic causes of Van der Woude syndrome are changes in the IRF6 gene and, less often, the GRHL3 gene. Carrying a genetic change doesn’t guarantee the condition will appear. Genetic testing can confirm the cause and refine the chance of recurrence for future pregnancies.
IRF6 variants: Changes in the IRF6 gene account for most cases of Van der Woude syndrome. They can be inherited from an affected parent or happen for the first time in a child. Features can range from small lower lip pits to a cleft lip and/or palate.
GRHL3 variants: A smaller share of people have changes in the GRHL3 gene. These can produce the same core features as IRF6-related cases. Patterns and severity can differ even within one family.
IRF6 deletions: Occasionally, a larger missing piece of chromosome that includes IRF6 causes the syndrome. This is found with tests that look for missing or extra DNA. Some people with a deletion may have additional features beyond the classic lip pits or cleft.
Autosomal dominant inheritance: If a parent carries an IRF6 or GRHL3 change, each child has a 50% chance of inheriting it. Signs can be mild or more obvious, so a parent may not realize they are affected.
De novo variants: Sometimes the genetic change arises for the first time in a child, with no prior family history. In that situation, the chance that future siblings are also affected is usually low, but not zero because a parent could carry the change in a small number of egg or sperm cells.
Variable features: The same gene change can look very different from person to person. A relative may have only tiny lip pits while another has a cleft, a pattern known as variable expression. This variability can make within-family prediction challenging.
Parental mosaicism: Rarely, a parent has the genetic change in some cells only, called mosaicism. They may look unaffected but still have a higher chance of having more than one affected child.
Lifestyle risk factors
Van der Woude syndrome is a genetic condition, not caused by lifestyle choices. However, daily habits can strongly influence feeding success, oral health, speech outcomes, and recovery from procedures. Understanding how lifestyle affects Van der Woude syndrome can help reduce complications and support quality of life. The lifestyle risk factors for Van der Woude syndrome relate mainly to oral care, nutrition, therapy practice, and choices that affect wound healing.
Infrequent brushing and flossing raise risks of tooth decay and gum disease around missing or crowded teeth common in this condition. Careful cleaning of the lips can also reduce inflammation or infection around lip pits.
Frequent sugary drinks and snacks increase cavities and can irritate drainage from lip pits. Choosing lower-sugar options and rinsing after meals lowers oral infection risk.
Inefficient feeding in infants with cleft lip/palate can lead to poor weight gain and aspiration. Upright positioning, paced feeds, and specialized bottles improve nutrition and reduce choking events.
Low protein or calorie intake can delay surgical wound healing and weaken immunity. Balanced meals with adequate protein and hydration support recovery after cleft or lip pit procedures.
Risk prevention
Van der Woude syndrome is a genetic condition, so you can’t fully prevent it, but you can lower risks of complications and plan ahead. Some prevention is universal, others are tailored to people with specific risks. Knowing early symptoms of Van der Woude syndrome, like feeding trouble or visible lip pits, helps families seek care promptly. Early, coordinated care often protects hearing, speech, teeth, growth, and overall well-being.
A genetics visit explains inheritance (often a 50% chance to pass it on) and options like preimplantation genetic testing or targeted prenatal testing if the family variant is known. This helps you plan pregnancy and delivery with the right team. Talk to your doctor about which preventive steps are right for you.
Taking 400 micrograms (0.4 mg) of folic acid daily before and during early pregnancy may reduce the chance of clefting in general. It won’t prevent Van der Woude syndrome itself but supports healthy fetal development.
Avoid smoking, vaping, and alcohol during pregnancy, and review medicines (for example, isotretinoin or valproate) with your clinician. Keeping diabetes well controlled and aiming for a healthy weight may lower cleft-related risks.
A detailed mid-pregnancy ultrasound can look for cleft lip and palate, and targeted genetic testing may be possible if an IRF6 variant is known in the family. Early awareness lets families plan delivery and newborn feeding support.
Transmission
Van der Woude syndrome is not contagious; you can’t catch it or pass it on through everyday contact. It is a genetic condition usually passed in an autosomal dominant pattern—if a parent has the condition, each child has a 50% chance of inheriting the altered gene.
Sometimes Van der Woude syndrome appears for the first time in a family because of a new gene change that happens early in development. Features can vary widely even among relatives who inherit the same change, so how Van der Woude syndrome is inherited does not predict how severe the features will be. If you’re planning a pregnancy, a genetics professional can explain the genetic transmission of Van der Woude syndrome and help clarify risks for your family.
When to test your genes
Test your genes if you were born with lower lip pits, cleft lip/palate, or have close relatives with these features, especially if planning a pregnancy. Genetic testing can confirm Van der Woude syndrome, guide surgical and speech care, and clarify recurrence risks. Prenatal or preconception counseling helps tailor monitoring and family planning.
Diagnosis
Diagnosis focuses on recognizing a pattern of facial features that starts at birth and may be seen in other relatives. Family history is often a key part of the diagnostic conversation. Doctors confirm the cause with genetic tests that look for changes in specific genes linked to clefts and lower-lip pits. This approach supports a clear genetic diagnosis of Van der Woude syndrome and helps guide care for you and your family.
Providers look for lower-lip pits, cleft lip and/or cleft palate, and missing teeth. These visible findings together are highly suggestive of Van der Woude syndrome. Photos and careful exam notes help document the pattern.
Clinicians ask about relatives with lip pits, clefts, or dental differences. A pattern across generations supports Van der Woude syndrome, which often runs in families. Drawing a simple family tree can make these connections clearer.
A blood or saliva test analyzes genes such as IRF6 and GRHL3. Finding a disease-causing change confirms the genetic diagnosis of Van der Woude syndrome. Testing can also guide whether relatives might benefit from screening.
Detailed scans can detect a cleft lip during pregnancy, sometimes as early as the second trimester. A cleft palate alone is harder to see, and lip pits are usually not visible. If Van der Woude syndrome is known in the family, targeted imaging may be offered.
Stages of Van der woude syndrome
Van der woude syndrome does not have defined progression stages. It is present from birth, and features like lower lip pits and cleft lip and/or palate may vary in severity from person to person but do not follow a stepwise decline over time. Doctors diagnose it based on early symptoms of Van der woude syndrome seen at birth or in early infancy, a physical exam, family history, and sometimes imaging of the mouth and jaws. Genetic testing may be offered to clarify certain risks.
Outlook and prognosis
Looking ahead can feel daunting, but many living with Van der Woude syndrome lead full, healthy lives with the right mix of surgical care, speech therapy, dental support, and ongoing check-ins. The condition mainly affects the lips, palate, and sometimes teeth; day to day, this can mean extra time for feeding support in infancy, speech therapy in childhood, and dental or orthodontic visits through adolescence. Most children with Van der Woude syndrome have typical intelligence and normal life expectancy. Serious medical complications are uncommon, though early symptoms of Van der Woude syndrome—like feeding difficulties from a cleft palate—benefit from prompt care to avoid issues such as poor weight gain or frequent ear infections.
Prognosis refers to how a condition tends to change or stabilize over time. For many, the most intensive phase of care happens in the early years, with surgeries to repair a cleft lip or palate and later touch‑ups to improve speech or dental alignment. As kids grow, speech often improves with therapy, and many teens transition to routine dental and orthodontic care, plus occasional procedures to address lip pits if they cause leaking or infections. Long‑term survival is excellent; mortality is not significantly increased due to Van der Woude syndrome itself, and risks are more tied to specific complications (like airway or feeding issues in severe clefts) that are typically manageable in modern care settings.
Everyone’s journey looks a little different. Some families have multiple affected members with mild features, while others see more pronounced clefts or dental differences, even within the same family. In medical terms, the long-term outlook is often shaped by both genetics and lifestyle. Talk with your doctor about what your personal outlook might look like, including timing of surgeries, speech milestones, and dental plans, and ask about genetic counseling if you’re considering future pregnancies.
Long-term effects
Van der Woude syndrome is a lifelong, inherited condition that mainly affects the lips, palate, teeth, and ears. Most people have typical intelligence and a normal life span, but the day-to-day impact can show up in speech, hearing, dental development, and appearance. Long-term effects vary widely, even within the same family. Thinking about the long-term effects helps set expectations from childhood through adulthood.
Some people have ongoing speech-sound challenges or a nasal quality to their voice after cleft repair. Air can escape through the nose during speech, which may make certain sounds harder to produce.
Repeated middle-ear fluid and ear infections in childhood can lead to fluctuating, usually mild hearing loss. For some, hearing differences continue into adulthood.
Missing teeth, small teeth, or extra teeth are common in Van der Woude syndrome. Bite alignment can be uneven as the jaws grow.
Small pits on the lower lip can drain saliva at times. This can cause skin irritation or social self-consciousness, even when painless.
How is it to live with Van der woude syndrome?
Living with Van der Woude syndrome often means navigating visible features like lip pits or a cleft lip/palate, along with practical issues such as feeding challenges in infancy, speech therapy needs, and dental care for missing or differently shaped teeth. Many do well with coordinated care from surgeons, speech-language pathologists, and dentists, and most people participate fully in school, work, and family life once treatments and supports are in place. Day to day, there can be extra appointments and occasional social attention or questions, which may affect confidence, especially in childhood, but supportive peers, family, and counseling can make a strong difference. Because the condition is often inherited in families, relatives may share features or decisions about genetic counseling, which can bring families closer through shared understanding and planning.
Treatment and drugs
Treatment for Van der Woude syndrome focuses on the specific features someone has, most often cleft lip and/or cleft palate and lower-lip pits. Care is typically coordinated by a cleft and craniofacial team and may include surgery to repair a cleft in the first year of life, later touch-up procedures for speech or appearance, and removal of lip pits if they cause repeated infections, saliva leakage, or discomfort. Speech therapy is common, and many benefit from hearing checks, dental and orthodontic care for tooth gaps or missing teeth, and feeding support early on; your doctor may suggest genetic counseling to discuss inheritance and family planning. Although living with Van der Woude syndrome can feel overwhelming, supportive care can make a real difference in how you feel day to day. Not every treatment works the same way for every person, so keep track of how you feel, and share this with your care team.
Non-drug treatment
People with Van der Woude syndrome often benefit from practical, team-based support that helps with feeding, speech, dental health, and day-to-day confidence. Non-drug treatments often lay the foundation for long-term function, even when surgeries are also part of care. Starting early—sometimes as soon as early symptoms of Van der Woude syndrome are noted—can make skills like feeding and speech easier to build. Plans usually change over time, matching each child’s growth and each adult’s goals.
Specialized bottles, nipples, and positioning can make feeding safer and less tiring. A feeding therapist can teach techniques to reduce choking and improve weight gain. This support is helpful from the first weeks of life.
A lactation consultant can help adapt breastfeeding positions and pacing. They can also suggest ways to combine breastmilk with specialized feeding devices. This can lower stress for both baby and parent.
Early, regular sessions target clear sounds and nasal airflow control. Therapists use play-based exercises to build understandable speech. This is common support for children with Van der Woude syndrome.
Braces, expanders, and retainers guide jaw and tooth alignment over time. Early assessments help plan the sequence of care. Regular follow-up keeps treatment on track.
Your genes may have an impact on how drugs work for you
Medicines for Van der Woude syndrome are usually supportive—like antibiotics for ear infections, speech therapies, or surgeries—and responses can vary because genes influence how bodies process drugs. Differences in enzymes that break down medicines can change dosing needs and side‑effect risk.
Pharmacological treatments
Medicines for Van der Woude syndrome focus on comfort, infection control, and protecting teeth and ears; they don’t change the genes or replace surgery for a cleft lip or palate. Most drugs are used short term around surgeries or during common issues like ear infections or irritated lip pits. Not everyone responds to the same medication in the same way. Your care team will match treatments to age, symptoms, and the timing of cleft repair.
Acetaminophen (paracetamol) and ibuprofen help with post‑surgery pain and fever. They are usually given for a few days, with doses based on weight. Avoid aspirin in children due to the risk of Reye’s syndrome.
Amoxicillin is often prescribed for acute otitis media linked to cleft‑related ear tube problems, with amoxicillin‑clavulanate used if there’s higher resistance risk. Ear infections can be one of the early symptoms of Van der Woude syndrome in babies with a cleft palate. Your doctor will choose dosing by weight and local guidelines.
Ofloxacin or ciprofloxacin‑dexamethasone ear drops are used if there is drainage through ear tubes. These drops are safe with tubes and act directly where infection occurs. Use them for the full prescribed course.
Mupirocin ointment can treat mild bacterial infection around lower‑lip pits. If redness spreads or there’s fever, an oral antibiotic like cephalexin may be used. Gentle moisturizers can reduce irritation once infection clears.
Genetic influences
Van der Woude syndrome often runs in families because a single altered copy of a gene that guides lip and palate formation can be enough to cause it. Most cases trace to changes in a gene called IRF6, and less often GRHL3; in some children, the change happens for the first time, so there’s no prior family history. When a parent is affected, each child has a 1 in 2 (50%) chance of inheriting the gene change, but the signs can range from barely noticeable lip pits to a cleft lip and/or palate. Even within one family, the same gene change can look different from person to person. Genetic testing for Van der Woude syndrome can confirm the gene involved and clarify the chance of recurrence for future pregnancies and for other relatives. To put these pieces together, doctors may suggest genetic counseling.
Is Van der woude syndrome genetic?
Genetics is central in Van der Woude syndrome; most cases result from inherited changes in the IRF6 gene, often passed in an autosomal dominant pattern. A single altered copy can cause features, though severity varies. New (de novo) variants also occur.
Pharmacogenetics—how genetics influence drug effects
For people with Van der Woude syndrome, care often involves surgeries, dental work, and speech support, so medicines and anesthesia are part of the journey. The gene changes that cause the condition (often in IRF6) don’t usually alter how drugs are broken down, but other inherited differences can influence which pain relievers, antibiotics, or anesthesia drugs are safest and most effective. Because some people convert codeine or tramadol to morphine too quickly or too slowly, these opioids can be risky or ineffective after cleft repair, and many teams prefer non-opioid options like acetaminophen and ibuprofen. Rare differences in the enzyme that clears certain muscle relaxants used during anesthesia can lead to longer-than-expected weakness; tell your surgical team about any family history of trouble waking up or needing a ventilator after anesthesia. Genetic testing can sometimes identify how your body handles pain medicines, anesthesia, or even specific antibiotics that can affect hearing. Genetics doesn’t change the early symptoms of Van der Woude syndrome, but it can shape careful choices around anesthesia, pain control, and ear infection treatment throughout childhood and adulthood.
Interactions with other conditions
People with Van der Woude syndrome often also face conditions linked to cleft palate and lip structure, such as frequent middle ear infections and temporary hearing loss that may need ear tubes and hearing checks. Early symptoms of Van der Woude syndrome can appear alongside feeding difficulties in infancy, and reflux or poor weight gain may occur when swallowing is hard. Dental issues—like missing or unusually shaped teeth—can raise the risk of cavities and gum disease, so coordinated dental and orthodontic care is important. Sleep‑disordered breathing, including obstructive sleep apnea, can develop in some, especially if the airway is narrow or after surgeries, and may interact with speech and learning by affecting sleep quality.
Certain diseases may “overlap,” meaning features of Van der Woude syndrome can resemble or share causes with related cleft conditions, such as popliteal pterygium syndrome in the same gene family. Mood or social challenges can also occur when speech, dental appearance, or multiple procedures affect daily life, so mental health support can make a real difference. Talk with your doctor about how your conditions may influence each other, particularly when planning surgeries, ear care, orthodontics, and speech therapy.
How genes can cause diseases
Humans have more than 20,000 genes, each carrying out one or a few specific functions in the body. One gene instructs the body to digest lactose from milk, another tells the body how to build strong bones and another prevents the body's cells from beginning to multiply uncontrollably and developing into cancer. As all of these genes combined are the building instructions for our body, a defect in one of these genes can have severe health consequences.
Through decades of genetic research, we know the genetic code of any healthy/functional human gene. We have also identified that in certain positions on a gene, some individuals may have a different genetic letter from the one you have. We call these hotspots "Genetic Variations" or "Variants" in short. In many cases, studies have been able to show that having the genetic letter "G" in the position makes you healthy, but having the letter "A" in the same position disrupts the gene function and causes a disease. Genopedia allows you to view these variants in genes and summarizes all that we know from scientific research, which genetic letters (Genotype) have good or bad consequences on your health or on your traits.
History
Throughout history, people have described families in which several relatives were born with cleft lip, cleft palate, or small pits on the lower lip. A grandparent might recall an aunt with tiny lip dimples, while a child in the next generation had a cleft that needed surgery. These repeating patterns stood out long before the condition had a name.
First described in the medical literature as a distinct syndrome in the mid-20th century, Van der Woude syndrome gradually became recognized as the most common genetic cause of cleft lip and/or cleft palate with lower-lip pits. Initially understood only through symptoms, later studies linked these visible features across related family members, showing that the condition could pass from parent to child with a wide range of severity, even within the same family.
From early theories to modern research, the story of Van der Woude syndrome has moved from careful bedside observation to gene-level insight. In the 1990s and 2000s, advances in genetics identified changes in a gene that acts a bit like a developmental switch for facial growth. Finding this gene helped explain why some people have only subtle lip pits, while others develop a cleft lip, a cleft palate, or both. It also clarified why the condition can look different from one person to the next and even change in how strongly it appears across generations.
As medical science evolved, researchers mapped out related conditions with overlapping features, refining definitions and sharpening diagnosis. This led to more accurate counseling for families about chances of recurrence and what early symptoms of Van der Woude syndrome might look like in a newborn. Over time, descriptions became more inclusive of the full spectrum—recognizing that some people live their whole lives with only small lip pits, while others need coordinated cleft care from infancy.
In recent decades, awareness has grown alongside improvements in surgical techniques, speech therapy, and dental care. Historical differences highlight why today’s approach emphasizes early evaluation of both the lips and palate in anyone with characteristic pits, and why relatives may be offered an exam or genetic testing. Knowing the condition’s history helps explain today’s focus on family patterns, variable features, and tailored support from birth through adulthood.