Hidradenitis suppurativa is a chronic inflammatory condition which presents with deep, painful nodules or lumps under the skin. The painful nodules can rupture, leading to drainage of pus and blood. Over time, the painful nodules can connect, forming tunnels under the skin. The condition often results in scarring of the affected areas. Lesions typically occur in the axillae (armpits), groin region, or in the inframammary areas (folds under the breasts). The condition typically presents at or shortly after puberty. It is more common in women and Blacks. The exact cause is unknown, but thought to be related to hormones and/or genetics. Being overweight and/or smoking can also exacerbate the condition. Treatment options include prescription medications, corticosteroid injections, laser therapy, and surgery.