hidradenitis suppurativa

Hidradenitis suppurativa (HS), also known as acne inversa, is a long-term skin disease characterized by the occurrence of inflamed and swollen lumps. These are typically painful and break open, releasing fluid or pus. The areas most commonly affected are the underarms, under the breasts, and groin. Scar tissue remains after healing.The exact cause is usually unclear but believed to involve a combination of genetic and environmental factors. About a third of people with the disease have an affected ...