Hidradenitis suppurativa usually appears as one or more red, tender bumps that fill with pus. It most commonly occurs in the armpits (shown), groin, between the buttocks and under the breasts.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press.
Make a gift to our 2025 Drive to Cure Cancer and transform the way cancer is treated and defeated.