is a rare motor neuron disease causing weakness, wasting, and hearing loss.

is a rare disorder causing multiple enchondromas and soft-tissue blood vessel growths.

is a rare genetic condition causing low muscle tone and developmental delays.

is a rare, poorly defined syndrome name not widely used in medicine.

is a cancer that starts in one of the lungs’ main airways.

is a rare inherited autoinflammatory disorder causing bone inflammation and anemia.

is a common mood disorder causing persistent sadness and loss of interest.

causes a lingering sensation of rocking or swaying after travel stops.

is a rare inherited skin disorder causing thickened palms and soles.

is a rare inflammatory condition that usually affects the urinary tract.

is a rare genetic condition causing overgrowth, developmental delays, and learning differences.

is a mosquito-borne parasitic infection causing fever, chills, anemia, sometimes life-threatening.

is a rare breast cancer that develops in breast tissue in men.

is a narrowing of the penis opening or urethra that affects urination.

is reduced blood flow affecting the penis or testes.

is a rare disorder causing delayed puberty, learning problems, and bone abnormalities.

is difficulty achieving pregnancy caused by sperm quantity, quality, or function.

is a rare cause of male infertility where sperm lack heads.

is infertility caused by sperm with round heads that cannot fertilize eggs.

is a genetic condition causing underdeveloped testes and reduced fertility in males.

causes reduced fertility from underdeveloped testes or abnormal sperm production.

is a rare cause of male infertility involving abnormal, enlarged sperm.

is semen without sperm due to a blockage, causing infertility.

involves genetic blockages preventing sperm in semen, causing infertility in men.