The mind-altering effects of a well-known parasite may extend to more species than we thought. In new research this month, Yellowstone scientists are making the case that Toxoplasma gondii infection ...

Pilonidal sinus—also called a pilonidal cyst—is a skin infection that occurs in or around the crease of your buttocks. This condition happens when hair, skin cells, and dirt clog a hair follicle, ...

The Bartholin glands sit on either side of the vagina and make lubricating fluid. When these glands get blocked, fluid can back up in them and form a Bartholin cyst. Bartholin cysts are often small ...

Boils and cysts are two types of growths on the body. Also known as furuncles, boils are pockets of pus (a creamy, white substance) on the skin caused by bacteria infecting hair follicles.