In this condition, a finger gets stuck in a bent position and may straighten suddenly with a snap. It happens most often in women over the age of 50.
Disease
Pulmonary atresia
This life-threatening heart condition that's present at birth changes the way blood travels from the heart to the rest of the body.
Disease
Syphilis
Understand how this infectious disease spreads, what you can do to prevent it and how it's treated.
Disease
Patent foramen ovale
Learn more about the causes and complications of this condition in which a hole in the heart doesn't close the way it should after birth.
Disease
Acne
Learn more about this common skin condition, including causes, treatments and simple skin care steps you can do at home to help control it.
Disease
Baby acne
Baby acne — Comprehensive overview covers causes, symptoms, treatment of this newborn complexion problem.
Disease
Epithelioid sarcoma
This rare, slow-growing soft tissue cancer tends to occur in teenagers and young adults. It often starts in a hand, wrist, arm or leg.
Disease
Heat rash
Learn more about the symptoms, causes and treatment of this heat-related problem of the skin that affects people of all ages.
Disease
Morphea
Learn more about this rare, painless skin condition, including risk factors, symptoms, complications and treatment.
Disease
Scabies
Learn more about this condition that spreads easily. It causes intense itching, most often where the skin folds, such as around joints.
Disease
Scarlet fever
Learn more about the symptoms, causes, complications and treatment of this strep bacterial infection that causes a red rash, sore throat and high fever.
Disease
Synovial sarcoma
This rare type of cancer tends to occur near large joints, mainly the knee, in young adults. The main treatment is surgery.