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Shaving with HS: what helps, what irritates, and what to try instead
Shaving with HS can irritate sensitive skin. Compare trimming, waxing, and laser hair removal, and learn when recurring bumps need a dermatologist's care.
Key takeaways
Shaving doesn't cause HS, but it can irritate affected skin. Razors may aggravate inflammation, particularly in areas prone to friction, such as the underarms and groin.
Consider trimming instead of shaving. An electric trimmer that leaves a little hair above the skin may help minimize irritation, although research specifically evaluating trimming in HS is limited.
Avoid waxing affected areas. Dermatologists generally recommend against waxing with HS because it can irritate the skin and potentially trigger painful lesions.
Laser hair removal may help reduce HS flares. Clinical guidelines support considering laser hair removal as part of an individualized treatment plan.
Recurring painful lumps may be more than razor bumps. Lesions that repeatedly appear in the same areas, drain, or leave scars should be evaluated by a dermatologist experienced in HS.
Shaving can be challenging when you have hidradenitis suppurativa (HS), a chronic inflammatory skin condition that causes painful lumps, abscesses, and sometimes scarring.
Although shaving does not cause HS, it can irritate sensitive skin and may worsen symptoms for some people. This is particularly relevant in areas where HS commonly develops, including the underarms, groin, inner thighs, and buttocks.
Fortunately, there are ways to reduce irritation, and alternative hair-removal methods may be more comfortable.
This guide explains what shaving does to the skin, what the research shows, and which hair-removal options are gentler. It also covers how to shave more gently, how to tell HS from razor bumps, and when to see a specialist.
Why shaving can irritate HS-prone skin
As our HS condition guide explains, HS is a long-term inflammatory condition that begins in the hair follicle. The follicle is the small pocket in the skin where each hair grows. HS isn't contagious, and poor hygiene doesn't cause it.
A razor works right at the skin's surface. It can nick the skin, scrape away the top layer, and leave a sharp hair tip that curls back into the skin. That curled hair is an ingrown hair.
In skin prone to HS, small injuries and irritation like these can feed a flare. Friction adds to this in the underarms and groin, where skin rubs together and against clothing.
Shaving can also lead to folliculitis, which is inflammation of the hair follicles. MedlinePlus explains how shaving inflames hair follicles: it starts when follicles are damaged or blocked, for example by shaving or clothing rubbing. Most of the time, those damaged follicles become infected with staph bacteria.
That's often why armpit boils seem worse a few days after shaving. Tender red bumps may be irritated or infected follicles, and in someone with HS, the same irritation can come alongside a flare. If bumps keep returning to the same places, that pattern deserves a closer look.
Repeated irritation in skin folds can also leave the skin darker over time. Our guide to dark marks from shaving irritation explains why this happens and what helps.
What research shows about shaving with HS, and what it doesn't
Most of what's known about shaving and HS comes from patient surveys. Surveys capture what people experience. They can't show that shaving causes flares.
In a 2023 survey of HS patients at Oregon Health & Science University, 68 adults with underarm HS completed questions about their routines. Of the 48 who had shaved, 36 (75%) rated shaving as harmful for their HS. In the same survey, 18 of 22 people who tried laser hair removal said it helped.
A second study points the same way. In an online survey on hair removal of 114 people with HS in Italy, published in 2023, the razor was the most used method (64%). It was also the method that most often led to worsening (60%).
Both studies rely on self-reported answers, and some people with HS shave without trouble. We did not find a controlled study that compares hair-removal methods in HS. That gap explains why professional advice differs.
The American Academy of Dermatology (AAD) allows shaving with extra precautions. Mayo Clinic's HS skin care advice is stricter and recommends avoiding both shaving and depilatory creams, which chemically dissolve hair at the skin's surface.
Your own pattern is often the most useful evidence you have. Note when and where you shave, and when bumps appear. A few weeks of notes can show whether shaving affects your skin and help your dermatologist plan care.
Hair removal options for HS, compared
No single method suits everyone with HS. The goal is the least irritating option that fits your life and the area you're treating.
The AAD self-care tips for HS note that, in general, dermatologists recommend people with HS never wax. Our own clinical guidance adds gentler everyday habits, such as trimming instead of shaving.
Method | How it treats HS-prone skin | What's known | Good to know |
|---|---|---|---|
Razor shaving | Cuts hair at the surface and can nick skin or leave sharp tips that grow inward | Two 2023 patient surveys link it to worsening for many respondents | The AAD advises extra precautions; Mayo Clinic advises avoiding it |
Electric razor | Cuts hair close to the skin with the blades behind a screen | We found no HS-specific studies | MedlinePlus suggests a new blade or an electric razor for people prone to folliculitis |
Trimming (clippers or electric trimmer) | Leaves hair short without cutting at the skin | We found no HS-specific studies; this is our clinical guidance | Some of our patients closely trim underarm hair instead of shaving |
Depilatory creams | Dissolves hair with chemicals spread on the skin | We found no HS-specific studies | Mayo Clinic advises avoiding them with HS |
Waxing | Pulls hair out from the root | The AAD says, in general, people with HS should never wax | The method dermatologists most consistently advise against |
Laser hair removal | Uses light to damage follicles so fewer hairs grow back | A conditional recommendation for fewer flares in October 2026 guidelines | Done in a dermatologist's office; insurance doesn't always cover it |
Leaving hair as is | Avoids blade contact and pulling | We found no HS-specific studies | A personal choice that can be combined with trimming |
Trimming and electric trimmers
Trimming keeps hair short without a blade touching the skin. Some of our patients skip shaving their underarms and use an electric trimmer to closely trim the hair instead.
We did not find a study of trimming in HS specifically. This recommendation reflects clinical judgment from dermatologists who treat HS. The same approach can apply to the bikini line and groin, where skin folds rub together.
Laser hair removal as part of HS treatment
Laser hair removal uses light to damage hair follicles so fewer hairs grow back. In HS, it can reduce flares for some people. The AAD explains that laser can reduce the number of hair follicles, decrease bacteria on the skin, and make oil glands less active.
The first joint HS guidelines of care from the AAD and the HS Foundation, released in October 2026, include 37 evidence-based recommendations. Laser hair removal for fewer flares is listed among the conditional recommendations. A conditional recommendation means the benefits are closely balanced with the risks and burdens, so the choice depends on the individual.
Mayo Clinic also notes that laser can help HS in its early stages. According to the AAD, sessions are generally spaced about 6 weeks apart, and insurance doesn't always cover the cost. Treatment takes place in person, in a dermatologist's office.
The laser and its settings are matched to your skin tone and hair color. On darker skin, dermatologists use lasers selectively to protect pigment, as we explain in our guide to HS on Black and brown skin.
Laser is a treatment decision, so it's best planned with an HS specialist. Your specialist can judge timing, fit it alongside other treatment, and coordinate the in-person sessions.
How to shave more gently if you keep shaving
Many people with HS keep shaving, and it can be done more gently. The routine below combines AAD advice, including dermatologists' shaving technique tips, with our own clinical guidance.
Wash the area first with an antibacterial soap.
Wet the skin and apply a gel-to-foam shaving gel.
Use a clean, sharp blade, and change blades or throw away disposables after 5 to 7 shaves.
Let the razor dry completely between shaves.
Shave in the direction the hair grows, with light pressure, and rinse after each swipe.
Skip any area with an active lump, breakout, or open spot.
Use your own razor and never share it.
Finish with a gentle, hypoallergenic moisturizer.
Wear loose, breathable clothing to limit rubbing.
The soap, gel, and careful shaving to avoid nicks come from the AAD's HS guidance. Wetting the skin, shaving with the grain, rinsing, changing blades, and drying the razor come from the AAD's general shaving tips. Light pressure, skipping active lumps, using your own razor, moisturizing, and loose clothing reflect our own clinical guidance.
After shaving, watch for a pattern. Bumps that fade within a few days often point to irritation. Lumps that keep appearing in the same spots deserve a dermatologist's attention.
Razor bump, boil, or HS: how to tell the difference
These can look alike early on. The pattern over time is the strongest clue. An HS nodule is a deep, firm, painful lump under the skin.
Feature | Razor bump or ingrown hair | Folliculitis or ordinary boil | HS nodule |
|---|---|---|---|
What it feels like | Small, itchy or tender bump, sometimes with a visible hair | Red, tender bump; a boil is a larger lump filled with pus | Deep, firm, painful lump that can feel like a knot |
Depth | At the surface | Around the follicle; a boil goes deeper | Deep under the skin |
Timing after shaving | Soon after shaving | Often a few days after shaving or friction | Can appear with or without shaving |
How it heals | Usually settles as the hair grows out | Most boils heal once they drain | Drains, seems to heal, then refills |
Where and how often it returns | Wherever you shave, mostly after shaving | Occasionally, often in different spots | Again and again in the same areas |
What can follow | Dark marks can follow | A firm lump may linger while the tissue heals | Tunnels under the skin and rope-like scars |
As our guide to boils that keep coming back explains, many recurring boils are staph infections. Ordinary boils are most often caused by the bacterium Staphylococcus aureus.
The same guide describes a different pattern with HS. Antibiotics may calm a flare, and the lumps can still return once the course ends.
HS lumps return to the same areas, such as the underarms, groin, inner thighs, buttocks, or under the breasts. They drain, seem to heal, and then refill. Over time, HS can form sinus tracts, which are tunnels under the skin, along with scars.
HS in men is often mistaken for ingrown hairs or boils, especially in the groin and buttocks. Read more about how HS shows up in men.
Only a clinician can tell these apart with confidence. Get same-day care for a fever, spreading redness, or pain that is quickly getting worse.
When grooming changes aren't enough
If lumps keep returning however you groom, that pattern is a reason to see a dermatologist who treats HS. Treating HS at stage I, its earliest stage, can change the course of the disease.
An HS specialist can confirm the diagnosis and build a plan that matches your stage of disease. Options range from topical and oral treatments to biologics, which are medicines that target specific parts of the immune response. A plan can also include laser hair removal or in-office procedures.
It helps to bring photos of your flares and a rough timeline of when they happen. A short description of your hair-removal routine gives your specialist useful context.
Tono's HS specialists are board-certified dermatologists focused on HS. You can see them by video or in person. Your specialist coordinates in-person steps such as laser sessions or procedures.
Tono has cared for more than 20,000 patients across a 33-state clinical footprint. Patients reach a specialist within days rather than months. Our HS program supports care over time, from diagnosis through changes in treatment.
Frequently asked questions
Should I stop shaving if I have HS?
Not necessarily. Whether to keep shaving depends on how your skin responds. Pausing during flares is a sensible place to start.
Why do my armpit boils get worse after shaving?
Shaving can nick the skin and irritate hair follicles, which may then become inflamed or infected. If the boils keep returning to the same spots, ask a dermatologist about HS.
Is waxing safe with HS?
Dermatologists generally advise people with HS never to wax. The AAD notes that waxing can irritate the skin, which may cause more painful HS lumps.
Can laser hair removal cure HS?
No. Laser hair removal can reduce flares for some people as one part of a treatment plan that an HS specialist oversees.
Does insurance cover laser hair removal for HS?
Sometimes. Coverage varies by plan, so ask your insurer and your dermatologist's office before starting sessions.
Planning hair removal with an HS specialist
A Tono HS specialist can review your pattern of flares and build a plan that includes hair removal. Visits are available in person or by video. Book a visit with an HS specialist.
