Understanding Hidradenitis Suppurativa: A Complete Patient Guide

Hidradenitis suppurativa is a long-term inflammatory skin condition that causes painful lumps, draining bumps, and scarring, most often in areas where skin rubs together such as the armpits, groin, buttocks, and under the breasts. It is not caused by poor hygiene, and early diagnosis can help reduce flares, pain, and skin damage.

Overview: what hidradenitis suppurativa is

Hidradenitis suppurativa is a chronic inflammatory skin condition that usually affects areas where hair follicles and sweat-bearing skin are exposed to friction, warmth, and moisture. It most often appears in the armpits, groin, inner thighs, buttocks, genital area, and under the breasts. The condition causes recurring painful lumps that may enlarge, drain, heal slowly, and leave scars.

Although hidradenitis suppurativa can look like repeated boils or infections, it is not simply a short-term skin infection. It is now understood as an inflammatory disease linked to blockage and rupture of hair follicles, followed by ongoing immune activity in the skin. This helps explain why symptoms may return in the same areas over months or years.

The condition varies widely from person to person. Some people have only occasional small nodules, while others develop repeated abscesses, sinus tracts or tunnels under the skin, and thick scarring. Because the symptoms often affect intimate areas and can be embarrassing, people may delay seeking help. Early assessment matters, because treatment can reduce pain, limit skin damage, and improve quality of life.

How it looks and feels: common symptoms

Hidradenitis suppurativa usually begins as tender, deep-seated bumps under the skin. These may feel like painful knots or inflamed lumps and can be mistaken for ingrown hairs, acne, or ordinary boils. The bumps often recur in the same places and may last for days to weeks.

As the condition progresses, some lumps may fill with pus and break open, causing drainage with an unpleasant odor. Nearby areas can connect under the skin, forming tunnels. Over time, repeated inflammation may lead to darkened skin, rope-like scars, and restricted movement if scarring becomes extensive.

Symptoms commonly include:

• Painful nodules or boils in skin folds
• Abscesses that recur in the same area
• Drainage of pus or blood-stained fluid
• Blackhead-like spots in paired openings
• Tunnels under the skin
• Scarring and skin thickening
• Itching, burning, or tenderness before a flare

Many people notice that symptoms come and go. Flares may interfere with walking, exercise, sleep, work, intimacy, or confidence. Emotional effects are common and deserve medical attention just as much as the skin changes do.

Why it happens: causes, triggers, and risk factors

Hidradenitis suppurativa is not caused by being unclean, and it is not contagious. The current understanding is that the disease begins with blockage of the hair follicle, followed by rupture and inflammation in surrounding tissue. The immune system then contributes to ongoing swelling and damage, which can make the condition chronic.

Doctors do not always know why one person develops hidradenitis suppurativa and another does not, but several risk factors are recognized. It often starts after puberty and is more common in women. A family history can increase the likelihood, suggesting a genetic component in some cases.

Factors linked to worse symptoms or higher risk include:

• Smoking
• Excess weight or obesity
• Friction from tight clothing or repeated rubbing
• Heat and sweating
• Hormonal influences
• Family history of hidradenitis suppurativa
• Other inflammatory conditions, sometimes including Crohn’s disease

These factors do not mean a person has caused the condition. Rather, they may make flares more likely or make inflammation harder to control. Understanding personal triggers can help guide daily self-care and treatment planning.

How doctors diagnose hidradenitis suppurativa

Hidradenitis suppurativa is usually diagnosed based on the pattern of symptoms and a skin examination. There is no single blood test that confirms it. Doctors look for three key features: typical lesions such as painful nodules or abscesses, typical body sites such as the armpits and groin, and repeated episodes over time.

Because the condition is often mistaken for recurrent infection, folliculitis, or cysts, diagnosis may be delayed. A dermatologist can help distinguish hidradenitis suppurativa from other skin problems, including severe acne and infected cysts. In some cases, wound swabs may be taken if secondary infection is suspected, but bacteria are not the main cause of the disease itself.

Doctors may also assess severity using staging systems that consider scarring, the number of areas involved, and whether tunnels have formed. This matters because treatment choices are different for early, limited disease than for more advanced disease. If symptoms are severe or unusual, imaging such as ultrasound may sometimes be used to map tunnels below the skin and support procedure planning.

Treatment options and long-term management

Treatment aims to reduce inflammation, ease pain, treat drainage, prevent new lesions, and limit scarring. A care plan is usually tailored to disease severity, the body areas involved, and how often flares occur. Mild disease may respond to topical or oral medicines and skin-care changes, while more advanced disease may need procedures or biologic therapy.

Common medical options include antibacterial washes, topical antibiotics, oral antibiotics for their anti-inflammatory effect, corticosteroid injections into painful nodules, hormonal therapy in selected patients, and biologic medicines that target inflammation. For persistent painful collections, a doctor may drain an abscess or perform procedures to open tunnels or remove badly affected skin. Some people benefit from coordinated care in dermatology and, when surgery is needed, general surgery.

People with hidradenitis suppurativa often need ongoing follow-up because the condition tends to flare and settle over time. Management may also include wound dressings, pain relief, and treatment of related conditions such as obesity, metabolic disease, or depression. If chronic inflammation is affecting broader health, doctors may arrange additional review through internal medicine.

When surgery is appropriate, the goal is not only to remove inflamed tissue but also to improve comfort and function. Procedures range from limited treatment of individual lesions to wider excision in advanced areas. Decisions are individualized, and patients should discuss the likely benefits, healing time, and risk of recurrence with their specialist.

Daily care, prevention, and reducing flares

There is no guaranteed way to prevent hidradenitis suppurativa, but self-care can help reduce irritation and support medical treatment. A gentle routine is usually best. Harsh scrubbing, frequent squeezing, and repeated shaving over inflamed skin can worsen symptoms and increase discomfort.

Helpful measures may include wearing loose, breathable clothing, reducing friction in affected areas, keeping the skin as cool and dry as practical, and using non-irritating cleansers. Some people find it useful to track flares in relation to stress, menstrual cycles, sweating, or specific activities. If weight management or smoking cessation is relevant, medical support may help and should be approached without blame.

At-home measures that may help include:

• Warm compresses for comfort
• Gentle cleansing and careful drying
• Avoiding picking or squeezing lesions
• Using absorbent dressings for drainage when advised
• Choosing soft underwear and loose clothing
• Seeking support for smoking cessation if needed

Nutrition alone does not cure hidradenitis suppurativa, but balanced eating patterns that support overall health may be helpful. Because this disease can affect mood and confidence, emotional support is also part of self-care. Joining a support group or speaking with a healthcare professional may help people cope with the long-term nature of the condition.

When to seek medical care

Medical review is important when painful lumps keep returning in the armpits, groin, or other skin folds, especially if they drain, scar, or do not heal well. A doctor should also assess symptoms that interfere with sleep, walking, work, or daily activities. Earlier treatment can help reduce skin damage and improve comfort.

Prompt medical attention is especially important if there is severe pain, rapidly increasing redness, fever, a large swollen area, heavy drainage, or difficulty moving the affected area. These problems may suggest infection or a flare that needs more urgent care. People should also seek help if over-the-counter measures are not enough, or if symptoms are affecting emotional wellbeing.

Hidradenitis suppurativa often benefits from care by a multidisciplinary team. Near the end of the care journey, it can be reassuring to know that Acibadem International’s multidisciplinary specialists and JCI-accredited hospitals diagnose and treat hidradenitis suppurativa for international patients, with access to dermatology, imaging, and surgical expertise when needed.

Frequently asked questions

Is hidradenitis suppurativa an infection?

Hidradenitis suppurativa is primarily an inflammatory skin disease, not a simple infection. Bacteria can sometimes cause a secondary infection in affected skin, but they are not usually the main reason the condition develops.

Can hidradenitis suppurativa go away on its own?

The condition can have periods of improvement, but it is usually long-term and tends to recur. Early treatment and regular follow-up can help reduce flares and limit scarring.

Is hidradenitis suppurativa contagious?

No. It cannot be passed from one person to another through touch, shared clothing, or close contact.

What is the difference between hidradenitis suppurativa and a boil?

A single boil is often a short-term infected hair follicle or skin abscess. Hidradenitis suppurativa causes repeated painful lumps in typical body areas, may form tunnels under the skin, and often leaves scars over time.

Does shaving cause hidradenitis suppurativa?

Shaving does not cause the disease itself. However, friction and skin irritation from shaving may worsen symptoms in some people, especially during active flares.

Can diet cure hidradenitis suppurativa?

There is no single diet proven to cure hidradenitis suppurativa. Healthy eating may support overall wellbeing and weight management, but treatment decisions should be made with a qualified doctor.

References

• American Academy of Dermatology
• National Institute of Arthritis and Musculoskeletal and Skin Diseases
• Mayo Clinic
• British Association of Dermatologists
• National Health Service

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.