Ingrown Hairs

Overview

An ingrown hair happens when a hair grows back into the skin instead of coming out through the surface. The skin around it can become red, raised, itchy, or sore. Sometimes a small pus-filled bump forms. Ingrown hairs are not caused by poor hygiene.

Yes, ingrown hairs are very common and usually mild.

Anyone who removes hair can get them. They are more common in teenagers and adults, especially people with curly or coarse hair. Men often get them on the beard and neck. Women often get them on the bikini line, legs, and armpits. Children can get them after haircuts or shaving.

Symptoms

Common symptoms

• Small red or dark bumps in areas where hair has been removed
• Itching or tenderness around the bump
• A small hair visible under the skin
• Pus or a small pus-filled head
• Mild pain when touched
• Dark marks on the skin after the bump heals, especially in darker skin tones

Symptoms in children

• Small tender bumps after a haircut, shaving, or waxing
• Itching or scratching at the area
• Bumps on the scalp, neck, legs, or armpits
• Signs of infection such as spreading redness or pus

Symptoms in older adults

• Bumps after shaving or where skin rubs together
• Thinner skin that may be more easily irritated by shaving
• Reduced vision or hand steadiness that makes shaving nicks more likely
• If you have diabetes or a weakened immune system, ask for advice early if a bump looks infected

Causes

Main causes

• A hair curls back and grows into the skin
• Shaving, waxing, tweezing, or using hair removal cream can leave a sharp hair edge that grows inward
• Tight clothing or friction can push hairs into the skin
• Dead skin cells can block the hair follicle, so the hair cannot come out normally

Risk factors

• Curly or coarse hair
• Shaving very close or against the direction of hair growth
• Frequent hair removal
• Tight clothing or repeated rubbing
• Sweaty skin
• Family history of ingrown hairs

When to see a doctor

See a doctor urgently if:

• Redness, swelling, or pain that is getting worse quickly
• Pus, foul-smelling discharge, or a large painful lump
• Fever or feeling generally unwell
• A sore that does not start to heal after a week or two

Book a routine appointment if:

• Ingrown hairs keep coming back
• You get large, painful lumps or scars
• You want advice about safer hair removal
• Dark marks or scarring are bothering you

Diagnosis

A doctor or nurse can usually tell if you have an ingrown hair by looking at the skin and asking about hair removal and symptoms. You do not usually need tests.

Tests that may be done

• Usually no tests are needed
• If the area looks infected, a doctor may take a small swab to check for infection
• Rarely, if lumps keep coming back, a skin specialist may suggest a small skin sample test

What to expect at your appointment

The visit is usually quick and private. Your doctor or nurse may examine the area, ask about shaving or waxing habits, and give advice on self-care. You can ask questions about preventing scars or repeated bumps.

Treatment

Most ingrown hairs get better on their own or with gentle self-care. The goal is to reduce irritation, help the hair come out, and avoid infection. Do not squeeze, pick, or cut into a bump yourself.

Self-care at home

• Stop shaving, waxing, or tweezing the area for a few weeks if you can
• Apply a warm, clean compress for a few minutes several times a day to help ease pain and encourage drainage
• Wash the area gently with mild soap and water
• Do not squeeze or pick the bump
• Use a gentle moisturizer if the skin is dry
• Ask a pharmacist about suitable pain relief if needed
• Once the skin has settled, gently exfoliate to help prevent dead skin buildup

Medical treatments

If the area looks infected, a doctor may prescribe a medicine to treat infection. They may also make a small opening to drain a large pus-filled lump. This is done by a healthcare professional. Do not try to drain or cut a lump yourself.

When is surgery considered?

Surgery is rarely needed. If you get repeated painful lumps, scars, or large boils, a doctor may refer you to a skin specialist. Some people choose laser hair removal, done by a trained professional, to reduce hair regrowth and lower the chance of ingrown hairs.

Living with this condition

Keep the area clean and dry, wear loose clothing, and let hair grow out for a while if possible. Avoid picking or squeezing bumps. A warm compress can help if a bump is sore.

Lifestyle tips

• Wear loose cotton clothing to reduce friction
• Avoid tight belts, waistbands, or straps over the affected area
• Change out of sweaty clothes soon after exercise
• Use a clean, sharp razor and shave in the direction of hair growth
• Do not share razors or hair removal tools
• Gently exfoliate and moisturize the skin

Diet and exercise

No special diet prevents ingrown hairs. Regular activity is fine. Wear comfortable clothing, shower after sweating, and avoid rubbing the area.

Mental health and emotional wellbeing

Ingrown hairs can be painful, itchy, and embarrassing, especially on visible areas. This can affect confidence and mood. Most cases settle with simple care. If you feel very distressed, anxious, or have thoughts of harming yourself, contact a qualified mental health professional or local crisis service straight away. If your life is at risk, call your local emergency number.

Prevention

Often, yes. Good shaving and hair removal habits can lower the chance of getting ingrown hairs.

Vaccines

There is no vaccine to prevent ingrown hairs.

Screening programmes

No routine screening is needed. See a doctor if you notice repeated painful lumps, spreading redness, or a sore that does not heal.

Complications

If left untreated

• A small skin infection that spreads
• A painful pus-filled lump, called an abscess
• Scarring or dark marks on the skin
• Repeated crops of bumps
• Rarely, a more serious infection that needs urgent care

Long-term outlook

Most ingrown hairs heal within days to a few weeks with simple care. Some people get them again, but good shaving habits and advice from a healthcare professional can help reduce repeat problems. The outlook is good.

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