Most people panic the first time they see a clump of hair on their pillow or notice the shower drain clogged after a wash. It ...

Hidradenitis suppurativa (HS) is not contagious. It does not come from close contact or shared items. HS starts with a blocked hair follicle deep in your skin, not an infection on your skin's surface.

The exact cause of hidradenitis suppurativa is unclear, but it is likely due to a combination of genetic factors, immune system dysfunction, and clogged hair follicles. Smoking and obesity can ...