Your body uses the PRDM12 gene to help pain-sensing nerve cells develop and keep working. This gene plays an important role in how you detect harmful heat, pressure, and injury. If the gene does not work properly, a person may be born with congenital insensitivity to pain, meaning injuries, burns, or eye damage can happen without the usual warning signal of pain. Some people with PRDM12 variants also have reduced sweating or slower healing after repeated unnoticed injuries.
What is a gene?
A gene is a piece of DNA that holds instructions your cells use to make molecules or regulate processes in the body. Some genes provide the directions for producing proteins, which are the parts of cells that do the work. Others mainly guide when certain processes happen, where they happen, and how active they are. Taken together, genes affect how the body grows and works, and they can influence how you respond to food, stress, or medicines. For a deeper look at this topic, you can read more in the LearnHub.
Overview
PRDM12Gene function
What if the gene works
The PRDM12 gene helps switch on other genes needed to form pain sensing nerve cells. This supports normal pain detection in the skin and other tissues.
Risk
What if the gene does not work
Variants in the PRDM12 gene most often lead to congenital insensitivity to pain, with little or no pain sensation from birth. Milder to more severe variants can affect how early it shows and whether dry eyes or repeated injuries occur.
Treatment
What does that mean for your treatment
No treatment or management approach is currently established specifically for pathogenic variants in the PRDM12 gene. The PRDM12 gene is being studied in pain biology as a possible future drug target, but this has not changed current treatment choices.
Conditions associated with PRDM12
Gene function
What if the gene works
From early development onward, the PRDM12 gene helps shape the nerves that let you feel painful heat, injury, and other harmful signals. It mainly works as a controller of gene activity, guiding certain immature cells to become pain-sensing nerve cells.
The PRDM12 gene helps turn sets of other genes on or off at the right time during early development. This control guides immature cells toward becoming specialized sensory nerve cells.
One of the main jobs of the PRDM12 gene is to help build nociceptors (pain-sensing nerves). These nerves help your body recognize signals linked to possible tissue damage, such as heat or injury.
As sensory nerves develop, the PRDM12 gene helps them keep the features that make them pain-sensing cells rather than another nerve type. This supports an organized pain warning system in the body.
What is a variant?
A genetic variant is a small change in the DNA sequence within a gene. These changes are common and are part of normal human diversity, including differences in appearance, metabolism, or how the body responds to environmental influences. Many variants do not have any noticeable effect and simply represent natural genetic variation. In some situations, though, a variant can change how a gene functions more substantially and may contribute to or cause a genetic condition.
Genetic variants
What if the gene does not work
PRDM12 gene variants can weaken or block the protein’s ability to control other genes in developing nerve cells involved in pain sensing. These DNA changes range from milder variants, which may leave some activity, to more severe variants that create a shortened or unstable protein. That spectrum can shape how strongly pain pathways are affected, and the most disruptive variants are often linked to earlier, more complete congenital insensitivity to pain.
How variants are linked to conditions
Pathogenic variants in the PRDM12 gene cause congenital insensitivity to pain, a rare inherited condition also called hereditary sensory and autonomic neuropathy type VIII. People with this diagnosis do not sense pain in the usual way from birth, so injuries, burns, mouth injuries, and eye damage may go unnoticed. This PRDM12 gene link to congenital insensitivity to pain is well established, and finding disease-causing variants can confirm the diagnosis.
A variant is not necessarily a diagnosis
Genetic variants are a usual feature of human biology and are widely found across the general population. Most do not directly affect health and instead reflect natural differences between people. For many genes, having a variant associated with a condition points to a possible link rather than a certain diagnosis, particularly when several genes and environmental influences contribute. There are cases, though, where one well understood variant in a particular gene is enough to confirm a diagnosis.
Are there things that can increase or change my risk?
For PRDM12, risk is mainly shaped by family genetics rather than lifestyle or environment. A child is at higher risk only if they inherit a nonworking PRDM12 copy from both parents; when both parents are carriers, each pregnancy has a 25% chance of the condition. There is not enough evidence to say that diet, exercise, or other daily habits change this risk.
Inheritance of PRDM12 variants
For families asking about the PRDM12 inheritance pattern, the best known PRDM12-related condition follows an autosomal recessive pattern. This means a child usually inherits one PRDM12 variant from each parent, and the parents are typically healthy carriers. When both parents carry a variant in the PRDM12 gene, each pregnancy has a 25% chance of resulting in an affected child, a 50% chance that the child will be a carrier, and a 25% chance that the child will inherit neither variant. Sons and daughters are affected at the same rate.
What does my PRDM12 result mean for my family?
For PRDM12, the main family implication is usually a recessive pattern linked to a rare condition where people cannot feel pain normally. Parents of an affected child are often healthy carriers, and brothers or sisters may also be carriers or, less often, have the condition. Other close relatives may carry the same gene change, especially on the side of the family it came through.
Genetic information
Genetic testing
How you find out about variants
To find out whether you carry variants in the PRDM12 gene, genetic testing for PRDM12 variants uses DNA from blood, saliva, or a cheek swab. A lab reads the gene's sequence and compares it with a usual reference sequence to identify changes that may help clarify a diagnosis or show whether a variant runs in a family.
When should I consider getting a genetic test?
Consider testing the PRDM12 gene if someone has felt little or no pain since birth and has repeated injuries, burns, or self-biting without noticing. It can also make sense when this rare inherited pain condition runs in the family or when a child shows these signs early in life.
A genetic result is only one part of your health story
A genetic result can be informative, but how much it reveals varies depending on the condition and the specific type of variant. Lifestyle, environment, age, and medical history are among the many factors that influence how the body functions over time. For some conditions, especially those shaped by many genes, genetic information provides context rather than certainty and is best understood alongside other parts of care. In other situations, a genetic result may give a clear answer. In areas such as medication response, genetic results can also help put individual experiences in context.
Pharmacogenetics
How variants shape your response to medicine
Genetic variation can affect how people respond to medicines. Small differences in DNA can change how the body breaks down a drug, moves it through the bloodstream, or responds to it at its target. This helps explain why the same treatment may work well for one person, have less effect in another, or cause side effects more easily in someone else.
What is Pharmacogenetics?
Pharmacogenetics examines the ways genetic differences can affect a person’s response to medicines. By looking at links between genes and drugs, it helps explain why the same treatment may work differently in different people. With many medications, genes can influence both how powerfully a drug works and how the body handles it. This information can support treatment choices that are more informed and more tailored to the individual. More detail on this subject is available in the LearnHub.
Drugs influenced by the PRDM12 gene
When should I seek medical advice?
There is not yet a broadly confirmed role for this gene in how medicines work, so any concerns about symptoms, pain treatment, new medicines, or side effects are best discussed with your doctor.
History
Families and communities once noticed rare patterns of children who did not respond to pain in the usual way, long before the cause was understood. In 2015, researchers identified the PRDM12 gene as one of the genes linked to congenital insensitivity to pain, a finding that helped explain some long-standing cases. This discovery came from studying affected families and comparing shared genetic variants across relatives. From these first observations, research expanded steadily. PRDM12 then became part of a broader shift in pain genetics, where scientists began tracing rare inherited pain conditions back to specific genes and using those findings to deepen understanding of human pain biology.