Short answer · Medically reviewed summary · Last updated: 2026-04-07
TL;DR: Hidradenitis suppurativa is a chronic inflammatory skin condition characterized by the formation of painful, recurring nodules, abscesses, and sinus tracts in areas where skin rubs together, such as the armpits and groin. Over time, these lesions can rupture, leak pus, and lead to significant scarring, often requiring long-term management by a dermatology specialist. What are the primary symptoms of Hidradenitis Suppurativa? The hallmark of hidradenitis suppurativa is the development of deep, painful lumps beneath the skin, typically in intertriginous areas (where skin touches skin).
6 people with Hidradenitis Suppurativa have shared their first-person experience on this question at DiseaseMaps.
TL;DR: Hidradenitis suppurativa is a chronic inflammatory skin condition characterized by the formation of painful, recurring nodules, abscesses, and sinus tracts in areas where skin rubs together, such as the armpits and groin. Over time, these lesions can rupture, leak pus, and lead to significant scarring, often requiring long-term management by a dermatology specialist.
The hallmark of hidradenitis suppurativa is the development of deep, painful lumps beneath the skin, typically in intertriginous areas (where skin touches skin). These lesions often start as small, pea-sized bumps that may persist for weeks or months. As the condition progresses, these lumps may enlarge, rupture, and drain a foul-smelling, purulent fluid. In our DiseaseMaps.org community of 729 members, many patients report the formation of "tunnels" under the skin, known as sinus tracts, which connect abscesses and frequently fail to heal completely. While the axillae (armpits) and groin are the most common sites, hidradenitis suppurativa can also manifest on the buttocks, inner thighs, under the breasts, and occasionally on the back or scalp.
Early identification is crucial for managing the long-term trajectory of hidradenitis suppurativa. Patients often report the following initial symptoms:
The severity of hidradenitis suppurativa is typically categorized using the Hurley staging system, which ranges from Stage I (single abscesses without sinus tracts) to Stage III (diffuse involvement with interconnected sinus tracts and extensive scarring). Quality of life is profoundly impacted by the chronic pain and the social stigma associated with the drainage and odor of the lesions. Many patients experience significant psychological distress, social isolation, and mobility limitations, especially when lesions occur in the groin or inner thighs, making walking or sitting painful.
While hidradenitis suppurativa is a chronic condition, certain symptoms require urgent evaluation to prevent serious complications. You should consult a physician immediately if you experience:
Without consistent treatment, hidradenitis suppurativa tends to progress from sporadic, isolated flares to a more continuous, inflammatory state. Repeated cycles of inflammation and healing result in fibrous scarring, which can restrict movement and cause skin contractures. Because the immune system is involved, managing the systemic inflammation is as important as treating the visible skin lesions to prevent long-term damage to the circulatory and skeletal systems.
Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.