No. Hidradenitis suppurativa is not contagious. You cannot catch HS through skin contact, physical proximity, shared clothing, towels, or any form of person-to-person transmission. HS is a chronic autoinflammatory condition driven by immune dysregulation and follicular biology, not infection. This is confirmed by the HS Foundation, the American Academy of Dermatology, and every major HS clinical guideline.
What HS actually is
HS is an autoinflammatory skin condition. It begins when hair follicles in intertriginous areas (armpits, groin, under the breasts, buttocks, inner thighs) become blocked. When a follicle is blocked, the immune system responds as if it has been damaged. In HS, that immune response is dysregulated: disproportionate, persistent, and difficult to resolve.
The cause is a combination of genetics, immune function, and environmental factors including hormones, smoking, and metabolic health. There is no pathogen involved. No bacteria, virus, or fungus causes HS or transmits it between people.
Why the misconception persists
HS lesions are painful, drain fluid, and appear in areas of the body associated with other conditions that can be transmitted, including sexually transmitted infections. The appearance is frequently compared to skin infections, boils, cysts, and folliculitis.
People with HS report experiencing stigma at higher rates than those with other skin conditions. The contagion misconception leads to social isolation and shame that stops people from seeking diagnosis and treatment. On average, people with HS see 15 different doctors over seven years before receiving an accurate diagnosis.
A secondary caveat worth knowing
HS is not contagious. But HS lesions can sometimes develop secondary bacterial infections, most commonly Staphylococcus aureus or Streptococcus. These secondary infections can, under some circumstances, be transmitted through direct contact. This is not the same as HS itself being contagious.
Keeping open wounds clean, dry, and appropriately dressed protects against secondary infection. The distinction matters: an infected HS lesion and contagious HS are not the same thing.
HS is not caused by poor hygiene
HS is not caused by insufficient washing. People with HS often practice meticulous hygiene and still experience severe, frequent flares. The condition has nothing to do with how clean a person is. Aggressive cleansing or scrubbing can actually irritate inflamed skin and worsen symptoms.
HS is not an STI
HS cannot be transmitted through sexual contact. It is not herpes, gonorrhoea, syphilis, or any other STI. The skin location is a result of where apocrine glands and hair follicles are concentrated, not of how the condition is transmitted.
Who actually gets HS?
HS affects an estimated 1-2% of the US population, representing as many as 13 million people. It is more common in women (roughly three times more than in men), tends to begin after puberty, and is more prevalent among African American women. The condition has a significant genetic component: approximately 30-40% of people with HS have a family member who also has it.
For a fuller explanation of what drives HS, see our post on what causes hidradenitis suppurativa (add URL when Post #18 publishes)
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Frequently asked questions
Can you get HS from someone else?
No. HS is not transmitted between people. It is an autoinflammatory condition caused by immune dysregulation and follicular biology. There is no infectious agent involved. You cannot develop HS through any form of contact with someone who has it.
Is HS an STI?
No. HS is not a sexually transmitted infection. Although it frequently affects the groin and inner thighs, this is because those areas have a high concentration of apocrine glands and hair follicles, not because of any mode of transmission.
Can poor hygiene cause HS?
No. HS is not caused by poor hygiene. The condition involves immune dysregulation, follicular occlusion, and genetic predisposition. Aggressive hygiene practices can irritate inflamed HS skin and may worsen symptoms.
Why do so many people think HS is contagious?
HS lesions drain fluid, often appear in areas associated with STIs, and are frequently misdiagnosed as skin infections. These factors, combined with low general awareness of HS, sustain the misconception. On average, people see 15 doctors over seven years before receiving a correct diagnosis.
Does having a family member with HS mean you will get it?
HS has a documented genetic component. Approximately 30-40% of people with HS have a family history of the condition. This suggests genetic predisposition, not transmission. Having a family member with HS increases statistical risk but does not mean you will develop the condition.
This article is for educational purposes only. It is not a substitute for medical advice. If you have hidradenitis suppurativa, work with a board-certified dermatologist to build a treatment plan.
References
- MyHSTeam. Is hidradenitis suppurativa contagious? https://www.myhsteam.com/resources/is-hidradenitis-suppurativa-contagious
- HS Foundation. Fact or fiction: 6 myths about hidradenitis suppurativa. https://www.hs-foundation.org/fact-or-fiction
Published by HS Daily.
