Hidradenitis suppurativa is a chronic inflammatory skin condition characterized by recurrent, painful nodules and abscesses that typically develop in areas where skin rubs together, such as the underarms, groin, buttocks, and under the breasts. The condition involves inflammation and blockage of hair follicles and associated glands, leading to deep lumps that may rupture and form tunnels (sinus tracts) under the skin. Symptoms can include swelling, drainage with an unpleasant odor, scarring, and significant discomfort. The exact cause is not fully understood but is believed to involve immune system dysfunction, hormonal influences, and genetic factors. Hidradenitis suppurativa often follows a relapsing course and can have a substantial impact on physical comfort and quality of life.