Learn whether hidradenitis suppurativa is genetic, how family history affects risk, and which lifestyle and medical factors may trigger HS.
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Medically reviewed by Op. Dr. Yasir Gözü · General Surgery and Proctology · Last updated: July 20, 2026
Written and Compiled by: Dr. Yasir Gözü
Medical Review: Dr. Yasir Gözü | Published: May 1, 2026 | Last Updated: May 1, 2026
Important Medical Notice: Hidradenitis suppurativa may be influenced by genetic predisposition, but it is not caused by genetics alone. If you have p
Quick Answer
Hidradenitis suppurativa can have a genetic component, but it is not purely a genetic disease. Many patients have no known family history, while some patients report relatives with similar recurrent abscesses, p Familial cases have been associated with mutations in genes such as NCSTN, PSENEN, and PSEN1, but these mutations expl In most patients, HS develops through a combination of genetic predisposition, immune system activity, blocked h Having a family history increases awareness and risk, but it does not guarantee that someone will develop HS.
Medical Disclaimer: This article is for educational purposes only and does not replace medical examination, diagnosis, genetic counseling, or treatment. If you have symptoms of hidradenitis suppurativa, please consult a qualified physician.
Table of Contents
Hidradenitis suppurativa, also known as HS or acne inversa, is a chronic inflammatory skin disease that usually affects friction-prone areas such as the armpits, groin, buttocks, inner thighs, under-breast area, and perianal region. The ICD-10-CM code for hidradenitis suppurativa is L73.2.
HS may have a genetic component, especially in patients with a strong family history. Some studies suggest that around one-third of patients may report an affected first-degree relative. However, this does not mean that HS is always inherited in a simple way. In many patients, no clear family history is found.
It is better to think of HS as a condition shaped by both internal predisposition and external triggers. Genetics may load the dice, but smoking, weight, friction, sweating, hormonal factors, stress, metabolic health, and delayed treatment can influence how the disease appears and progresses.
Clinical Note from Dr. Yasir Gözü: In clinical practice, patients often say, “My mother had the same type of p” This family pattern matters, but it is only one piece of the HS puzzle. The treatment plan should still be based on the patient’s current lesions, stage, p
For the main overview of the disease, see What is Hidradenitis Suppurativa? Diagnosis and Treatment Process.
Family history means that one or more close relatives have had similar symptoms or a confirmed diagnosis of hidradenitis suppurativa. This may include recurrent p
A family history does not mean that every child or sibling will develop HS. It only means that the risk may be higher and symptoms should be recognized earlier. Early awareness can reduce delays in diagnosis and prevent years of treating HS as “just boils”.
SituationWhat It MeansWhat To Do
No known family history
HS can still occur without affected relatives.
Evaluate symptoms, location, and recurrence pattern.
One close relative with HS
Risk may be increased, but disease is not guaranteed.
Be alert to early symptoms and seek evaluation if lesions recur.
Multiple relatives affected
A stronger familial pattern may exist.
Early diagnosis, risk factor control, and follow-up are important.
Early severe HS in family
Genetic predisposition may be more relevant.
Medical evaluation and, rarely, genetic discussion may be considered.
Some familial HS cases have been linked to mutations in genes involved in the gamma-secretase complex, such as NCSTN, PSENEN, and PSEN1. These genes are involved in cellular signaling pathways, including Notch signaling, which may influence skin follicle biology and inflammation.
However, this does not mean that every HS patient should be considered to have one of these mutations. Current literature suggests that monogenic mutations expl In most patients, HS is likely polygenic or multifactorial, meaning many genetic and environmental factors may work together.
Important Warning: Genetic information should not be used for self-diagnosis. Most patients with HS are diagnosed clinically, based on typical lesions, typical locations, and recurrence. Genetic testing is not routinely required for every HS patient.
To understand symptoms and diagnosis more clearly, see What is Hidradenitis Suppurativa? Diagnosis and Treatment Process.
Even when genetic predisposition exists, non-genetic risk factors can strongly influence HS activity. These factors may increase inflammation, friction, follicular blockage, sweating, or flare frequency.
Risk FactorPossible Effect on HSHelpful Step
Smoking
May increase inflammation and reduce treatment response.
Seek smoking cessation support.
Excess weight
May increase friction, sweating, and skin fold irritation.
Plan sust
Tight clothing
May worsen rubbing and local irritation.
Wear loose, breathable fabrics.
High-glycemic diet
May worsen symptoms in some patients.
Use a food and flare diary.
For nutrition-focused guidance, see Could Diet Affect Hidradenitis Suppurativa?. For supportive home care, see How to Treat Hidradenitis Suppurativa Naturally?.
Yes. Genetic predisposition does not mean that lifestyle has no role. A person may carry a higher risk, but disease activity can still be influenced by modifiable factors such as smoking, weight, friction, sweating, wound care, treatment adherence, and early medical follow-up.
These steps do not “switch off” genetics, but they can reduce the fuel that feeds the flare-up engine. HS is rarely managed by one magic lever; it usually needs a careful dashboard of medical care and d
HS diagnosis is usually clinical. This means the physician evaluates symptoms, lesion type, lesion location, recurrence pattern, dr Family history is part of the story, but it is not the whole story.
ConditionSimilar FeatureKey Difference
Boils
Painful swelling
HS tends to recur and may form tunnels and scars.
Buttock drainage
Usually centered near the natal cleft rather than multiple HS areas.
Anal fistula
Perianal drainage
May connect to the anal canal and needs proctologic evaluation.
Infected cyst
Abscess-like swelling
Usually more localized and not typically recurrent in multiple friction areas.
Treatment depends on disease severity, stage, p The presence of genetic predisposition does not automatically determine treatment. The patient’s current disease pattern does.
For antibiotic-focused treatment, see The Best Antibiotics for Hidradenitis Suppurativa. For surgical options, see Surgical Treatment for Hidradenitis Suppurativa: When and How Is It Performed?. For laser treatment, see Hidradenitis Suppurativa: Laser Treatment and New Methods.
When patients hear that HS may be genetic, they may feel helpless. That reaction is understandable, but not accurate. Genetic predisposition does not mean “nothing can be done.” On the other hand, self-treatment can cause harm.
Emergency Warning: Fever, rapidly spreading redness, severe p
You should see a doctor if you have recurrent p Early diagnosis can reduce years of confusion and help prevent progression to tunnels and scarring.
If HS runs in your family, the goal is not fear. The goal is earlier recognition, better trigger control, and a treatment plan before the disease builds a tunnel system under the skin.
If you have a family history of hidradenitis suppurativa or recurrent p
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