Fitness basics
Learning Center
Epidermolysis bullosa
Learn about a rare inherited disease that often shows up in infancy and causes fragile, blistering skin on the palms and feet. Severe disease may be fatal.
DiGeorge syndrome (22q11.2 deletion syndrome)
This condition is due to missing part of chromosome 22. It may cause heart issues, thyroid problems, cleft palate, lower immunity and other health problems.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
Hydronephrosis
Learn about this condition that occurs when urine doesn't drain properly from the upper urinary tract, leading to kidney swelling.
Cleft lip and cleft palate
Surgery can fix openings or splits in the upper lip, or the roof of the mouth (palate), or both types of these birth defects.
Penis-enlargement products: Do they work?
Considering penis enlargement? Get the facts about male-enhancement pills, pumps, exercises and surgeries.
Penis health: Identify and prevent problems
Understand the factors that affect penis health and how to identify problems.
Blood in semen
Finding blood in your semen can be alarming, but the cause is usually benign. Find out possible causes and when to see a doctor.
Green stool
Learn about the possible causes of green stools in adults and infants.
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