Jacksonian seizure
Jacobson's nerve tumor
Jail fever
Jansky-Bielschowsky
Jaundice of the newborn
Jaundice-associated conditions
Job syndrome
Jock itch
Joint inflammation
JRA
Junctional epidermolysis bullosa
Juvenile angiofibroma
Juvenile chronic polyarthritis
Juvenile idiopathic arthritis
Juvenile onset diabetes
Juvenile pernicious anemia
Juvenile rheumatoid arthritis