Hidradenitis Suppurativa

Hidradenitis Suppurativa is a chronic inflammatory skin disease that causes painful lumps, abscesses, draining tunnels and scarring, most often in areas where skin rubs together. It is not caused by poor hygiene and it can usually be managed with a specialist-led plan that combines skin care, medication and sometimes procedures.

Overview

Hidradenitis Suppurativa is a chronic inflammatory skin condition that affects hair follicles, usually in areas where skin touches skin. It most commonly appears in the armpits, groin, inner thighs, buttocks, around the anus and under the breasts. The condition can cause painful deep lumps, abscesses, drainage from the skin, sinus tracts or tunnels, and scarring over time.

HS is sometimes mistaken for repeated boils, infected cysts or ingrown hairs. However, it is a distinct medical condition driven by inflammation around hair follicles and the immune system. It is not caused by poor cleanliness, and it is not contagious. A person cannot catch HS from someone else or pass it on through touch.

The course of Hidradenitis Suppurativa varies widely. Some people have mild, occasional flare-ups, while others develop recurrent painful lesions and scarring that affect movement, sleep, work, relationships and emotional wellbeing. Early recognition is important because prompt specialist care can help control inflammation, reduce flare frequency and limit long-term skin damage.

Symptoms

Hidradenitis Suppurativa symptoms often begin with tender, pea-sized lumps under the skin. These may feel firm, warm or painful and can resemble boils. Lesions may settle slowly, return in the same area, or progress into abscesses that open and drain fluid. Drainage may be clear, bloody or pus-like and can have an odor, which may be distressing but does not mean the condition is due to poor hygiene.

As HS becomes more persistent, inflammation can create tunnels beneath the skin, called sinus tracts. These tunnels may connect several lesions and lead to repeated drainage. Over time, the skin can develop thickened scars, rope-like bands, dark marks, pits or restricted movement in affected areas. Pain, friction and leakage can make walking, sitting, exercise and clothing choices difficult.

Common features of Hidradenitis Suppurativa include:

• Recurrent painful lumps in skin folds
• Boil-like lesions that return in the same places
• Abscesses that may rupture or drain
• Blackhead-like openings, sometimes in pairs or clusters
• Sinus tracts, persistent wounds or scarring
• Flares that may be influenced by friction, sweating, stress, menstrual cycles or other triggers

Symptoms can also affect mental health. Many people with HS experience embarrassment, anxiety, low mood or social withdrawal because of pain, drainage or concerns about odor. These effects are part of the condition’s overall burden and deserve the same careful attention as the skin symptoms.

Causes & Risk Factors

The exact cause of Hidradenitis Suppurativa is not fully understood. Current evidence suggests that HS begins when hair follicles become blocked and inflamed. This can trigger a strong immune response in the surrounding skin, leading to painful nodules, abscesses and, in some people, tunnels and scarring. Bacteria may be present in draining lesions, but HS is not simply a bacterial infection.

Several factors may increase the likelihood of developing HS or make symptoms more severe. A family history is common in some patients, suggesting a genetic tendency. Hormonal influences may play a role because HS often begins after puberty and may flare around menstrual periods. Smoking is strongly associated with HS, and excess body weight can worsen friction, sweating and inflammation in skin folds.

Risk factors and associated conditions may include:

• Family history of Hidradenitis Suppurativa
• Smoking or nicotine exposure
• Overweight or obesity
• Mechanical friction from skin rubbing or tight clothing
• Hormonal changes, including menstrual-related flares
• Other inflammatory conditions, such as inflammatory bowel disease or certain types of arthritis
• Metabolic concerns, including insulin resistance in some people

Having a risk factor does not mean a person caused the condition. HS is a medical disease with biological and inflammatory mechanisms. Understanding individual triggers can help guide care, but patients should not feel blamed for having the condition.

Diagnosis

Hidradenitis Suppurativa is usually diagnosed by a dermatologist or other experienced clinician through a careful history and skin examination. The diagnosis is based on three main features: typical lesions, typical locations and recurrence over time. A doctor will ask when symptoms began, how often lesions return, which body areas are affected, whether there is drainage or scarring, and whether there are related symptoms such as bowel problems or joint pain.

In many cases, no special test is required to confirm HS. Swabs or cultures may be taken if infection is suspected, especially when there is fever, spreading redness or unusual drainage. Blood tests may be used to assess inflammation, anemia, metabolic health or suitability for certain treatments. Imaging, such as ultrasound or MRI, may occasionally help map deeper tunnels before a procedure or surgery.

Doctors may describe severity using clinical staging systems. Mild disease may involve isolated nodules or abscesses without tunnels. Moderate disease may include recurrent lesions and limited scarring or sinus tracts. More advanced disease can involve multiple interconnected tunnels, extensive scarring and chronic drainage. Staging helps specialists choose an appropriate treatment strategy and monitor response over time.

Because HS can be misdiagnosed as recurrent boils or cysts, patients may experience delays before receiving the correct diagnosis. Seeking assessment from a dermatologist is helpful when painful lumps return in the same skin-fold areas, especially if they leave scars or drain repeatedly.

Treatment Options

Hidradenitis Suppurativa treatment is individualized. The right approach depends on the severity of disease, body areas affected, frequency of flares, pain level, presence of tunnels or scars, other medical conditions and patient goals. A dermatologist or multidisciplinary team should decide the treatment plan after assessment. Treatment aims to reduce inflammation, prevent new lesions, manage pain and drainage, protect skin function and improve quality of life.

For milder HS, care may include gentle skin cleansing, reducing friction, appropriate wound dressings and topical anti-inflammatory or antimicrobial treatments. Oral medicines may be used for more persistent disease, including anti-inflammatory antibiotics, hormonal approaches for selected patients, or medicines that target immune pathways. The choice of medication requires medical review because benefits, risks, monitoring needs and pregnancy considerations vary.

Procedures can be important when lesions are persistent, painful or associated with tunnels. Options may include drainage for selected acute abscesses, steroid injections into inflamed lesions, laser-based treatments, deroofing of sinus tracts, or surgical removal of chronically affected skin. Surgery is not the same for every patient; it can range from limited procedures to more extensive reconstruction, depending on disease pattern and location. Wound care and follow-up are essential after any procedure.

Supportive management is also part of treatment. Pain control, dressings to manage drainage, help with mobility, nutritional guidance when relevant, smoking cessation support and mental health care may all be appropriate. Acibadem International’s multidisciplinary specialists and JCI-accredited hospitals diagnose and treat Hidradenitis Suppurativa for international patients, with care planned according to individual medical needs.

Living With / Prognosis

Living with Hidradenitis Suppurativa often means learning to manage flares, protect the skin and seek care early when symptoms change. Many people benefit from wearing loose, breathable clothing, minimizing friction in affected areas, using absorbent dressings when drainage occurs and avoiding squeezing or cutting lesions at home. Gentle hygiene can help comfort, but harsh scrubbing may irritate the skin and worsen pain.

Lifestyle measures do not replace medical treatment, but they can support disease control. For people who smoke, stopping smoking may help reduce inflammation and improve overall health. If excess weight is present, gradual weight management under professional guidance may reduce friction and improve associated metabolic factors. Patients should be encouraged to approach these changes without self-blame; HS is not a result of personal failure.

The prognosis varies. HS is usually long term, with periods of flares and quieter phases. Some people achieve good control with treatment, while others need ongoing specialist care and a combination of therapies. Early diagnosis and consistent follow-up may reduce scarring and help preserve comfort, mobility and confidence.

Emotional wellbeing is an important part of HS care. Pain, drainage, odor concerns and scars can affect intimacy, work, exercise and self-esteem. Patients should tell their doctor if HS is affecting mood, sleep or daily activities, because practical wound care, pain management and psychological support can make a meaningful difference.

When to See a Doctor

A person should see a doctor if they have painful lumps or boil-like lesions that recur, especially in the armpits, groin, buttocks, under the breasts or between skin folds. Repeated episodes in the same area, drainage, scarring or tunnels under the skin are strong reasons to request a dermatology assessment. Early evaluation can help distinguish HS from infections, cysts or other skin conditions.

Medical advice is especially important if pain is severe, symptoms limit walking or sitting, lesions are spreading, wounds do not heal, or there are signs of infection such as fever, rapidly increasing redness, warmth or feeling generally unwell. People with HS should also seek care if they develop joint pain, persistent bowel symptoms, or significant fatigue, because associated inflammatory conditions may need evaluation.

Patients already diagnosed with Hidradenitis Suppurativa should arrange follow-up if flares become more frequent, treatments are not helping, side effects occur, or drainage and odor are difficult to manage. HS can be controlled more effectively when patients and clinicians adjust treatment over time rather than waiting until symptoms become severe.

Frequently asked questions

What is Hidradenitis Suppurativa?

Hidradenitis Suppurativa is a chronic inflammatory skin condition that causes painful lumps, abscesses, drainage, tunnels under the skin and scarring. It most often affects skin-fold areas such as the armpits, groin, buttocks and under the breasts. It is not caused by poor hygiene and is not contagious.

What are the early symptoms of Hidradenitis Suppurativa?

Early symptoms often include tender lumps under the skin that may look like boils or deep pimples. They tend to recur in the same areas and may become painful, swollen or drain fluid. Repeated lesions in skin folds should be assessed by a dermatologist.

Is Hidradenitis Suppurativa an infection?

Hidradenitis Suppurativa is primarily an inflammatory disease of the hair follicles, not simply an infection. Bacteria may be present in draining wounds, and infections can sometimes occur, but antibiotics alone may not control the underlying disease. A specialist can decide whether antimicrobial, anti-inflammatory or procedural treatment is needed.

Can Hidradenitis Suppurativa be cured?

HS is usually a long-term condition, and there is no single cure that works for everyone. Many patients can achieve better control with a personalized plan that reduces flares, pain, drainage and scarring. Early diagnosis and consistent follow-up improve the chance of effective management.

What treatments are available for Hidradenitis Suppurativa?

Treatment may include skin care, dressings, topical or oral medicines, hormonal treatment for selected patients, immune-targeting therapies, laser procedures or surgery. The best option depends on disease severity, location, previous treatment response and overall health. A dermatologist should guide treatment decisions.

Does diet affect Hidradenitis Suppurativa?

Some people notice that certain foods seem to influence their flares, but diet triggers vary and are not the same for everyone. A balanced, sustainable eating plan may support general health, especially when weight management or metabolic concerns are relevant. Patients should avoid restrictive diets unless advised by a qualified healthcare professional.

When should someone seek urgent medical care for HS?

Urgent assessment is advised if there is fever, rapidly spreading redness, severe worsening pain, confusion, or a feeling of being very unwell. These symptoms may suggest infection or another complication. Recurrent but stable HS symptoms should still be reviewed by a doctor, preferably a dermatologist.

References

• American Academy of Dermatology
• British Association of Dermatologists
• European Academy of Dermatology and Venereology
• National Institute for Health and Care Excellence
• Mayo Clinic

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.