Breakouts & Pores
Scalp Acne
“Scalp acne” usually means small, itchy, sore spots in the hair, often along the front hairline. Doctors call this scalp folliculitis: inflamed hair follicles on the scalp. It can look like acne, but flaky scalp conditions and yeast or fungal infections can look similar and are treated differently.
- Scalp acne is usually scalp folliculitis, an itchy inflammation of hair follicles that often affects the front hairline.
- Regular shampooing, an antidandruff shampoo and not picking are reasonable first steps, though evidence for self-care is limited.
- Flaky patches suggest seborrheic dermatitis instead, and scarring, large lumps or hair loss need a dermatologist.
Overview
What is scalp acne?
Most people who say “scalp acne” are describing scalp folliculitis. DermNet defines it as an inflammatory disorder of the hair follicles in the scalp, also called acne necrotica miliaris. It causes small, very itchy pustules (pus-filled spots), often worst along the front hairline. Because they itch, they are hard to leave alone, and they often become sore and crusted.
The cause is not fully understood. DermNet describes it as an inflammatory reaction to things living in the follicle, mainly acne bacteria (Cutibacterium acnes), with Staphylococcus aureus in more severe cases, and sometimes Malassezia yeasts or tiny Demodex mites. That mix helps explain why some people improve with antidandruff shampoo and others need antibiotics.
Some forms are more serious: acne necrotica can leave pox-like scars, and a rare deep form causes large lumps, cysts and hair loss that can become permanent.
Common signs and patterns
What it can look or feel like
These features give context but do not confirm a diagnosis on their own.
Itchy bumps in the hair
Small red bumps or pustules within the hair, often clustered along the front hairline.
Sore, crusted spots
Scratched spots that turn tender and form crusts or scabs.
Few or many
Some people have a handful of spots, while others have many across the scalp.
Scars or hair loss
Small pitted scars, large painful lumps, or patches where hair thins are warning signs that need a doctor.
Causes and contributors
Inflamed follicles, microbes and the urge to scratch keep scalp spots going.
Scalp folliculitis seems to be a reaction to the bacteria, yeasts and mites that normally live in or around hair follicles. Scratching and picking then damage the follicle further, which keeps the cycle going.
Hair products may add to the problem. The American Academy of Dermatology (AAD) notes that many hair care products contain oils or other ingredients that can cause breakouts, and suggests choosing products labeled non-comedogenic (unlikely to clog pores).
What it may be confused with
Similar-looking concerns need different decisions
Several scalp conditions cause itch and bumps, and the right treatment depends on which one it is.
Seborrheic dermatitis
Itchy, inflamed skin with white to yellowish scale that may be dry or greasy. It forms patches of flakes, not separate pustules, and is not contagious.
Yeast (Malassezia) folliculitis
Itchy, same-sized bumps with no blackheads. It favors the upper chest and back but can reach the hairline. See fungal acne; it needs antifungals.
Fungal scalp infection (tinea capitis)
A ringworm (fungal) infection of the scalp, which DermNet notes can cause folliculitis. It needs a doctor’s diagnosis and prescription treatment, not just shampoo.
Severe scarring folliculitis
Large, painful lumps and cysts with patches of hair loss suggest a rare deeper form that can scar permanently and needs a dermatologist promptly.
Bottom line
The bottom line: keep the scalp clean, stop scratching, and get scarring or lumps checked early.
Mild scalp folliculitis often settles with regular washing, an antidandruff shampoo and a break from picking. DermNet lists ketoconazole and ciclopirox shampoos as sometimes helpful, which fits the role yeasts can play. These steps are practical rather than well tested in trials.
When it keeps returning, a doctor can offer prescription options. DermNet lists topical antibiotics, mild steroid applications, antihistamines for itch, oral antibiotics and, for stubborn cases, isotretinoin. Spots that scar, lumps or hair loss deserve earlier assessment, because some forms leave permanent scars.
Evidence-supported options
Choose the option that matches the cause and severity
This is general education, not a personal treatment plan. Product strengths, permitted uses and prescription status vary by country.
Regular gentle shampooing
DermNet suggests a mild normal shampoo as often as you like to keep the scalp clean. Conditioner is optional.
Limit: Helps manage mild cases but rarely clears persistent folliculitis alone.
Antidandruff shampoo
Shampoos with ketoconazole or ciclopirox are sometimes helpful, according to DermNet, and also treat seborrheic dermatitis.
Limit: Works only for some people, and availability and strengths vary by country.
Non-comedogenic hair products
Choosing hair products labeled non-comedogenic, as the AAD suggests, may reduce breakouts where products meet the skin.
Limit: A sensible step, but not proven to clear existing scalp folliculitis.
Prescription treatment
A doctor may use topical or oral antibiotics, a mild steroid, or isotretinoin for persistent or scarring cases.
Limit: Needs medical supervision, and isotretinoin has strict pregnancy rules and other side effects.
Supportive skincare
A simple routine while it is being managed
Small, steady habits help more than harsh scrubbing.
Wash days
- Shampoo regularlyWash with a mild shampoo as often as you need to keep the scalp clean.
- Add a medicated washOn some wash days, use an antidandruff shampoo and leave it on the scalp for the time the label says before rinsing.
- Rinse wellRinse shampoo and conditioner fully so residue does not sit along the hairline.
Every day
- Hands offTry not to pick or scratch. Keep nails short if you scratch in your sleep.
- Check your productsKeep oils, pomades and heavy styling products off the scalp and hairline where you can.
- Keep things cleanWash pillowcases, hats and hair tools regularly.
Common mistakes
What can make it harder to manage
- Scratching or picking at itchy spots, which makes them sore, crusted and more likely to scar.
- Scrubbing the scalp hard with nails or brushes.
- Assuming flakes are acne and using harsh acne products on a scalp that has seborrheic dermatitis.
- Using leftover antibiotics or antifungals without knowing the cause.
- Waiting months to get scarring spots, lumps or hair loss checked.
When professional help makes sense
See a doctor or dermatologist when scalp spots scar, deepen or cause hair loss
- Spots that leave small pitted scars as they heal.
- Large, painful lumps or pus-filled swellings on the scalp.
- Patches of hair loss in the affected area.
- Spots that keep returning despite regular washing and an antidandruff shampoo.
- Spreading redness, fever or feeling unwell.
Related reading
Continue with the next useful question
Editorial record
What this page knows, and what remains uncertain
Evidence summary
This page relies on DermNet clinical reviews of scalp folliculitis, folliculitis, Malassezia folliculitis and seborrheic dermatitis, plus AAD patient guidance.
Important limitations
Scalp folliculitis is not well studied, its cause is not fully understood, and most treatment advice comes from clinical experience rather than trials.
Financial transparency
No paid product placement or affiliate ranking is included on this foundation page.
Recommendation logic
Options move from everyday washing and product choices to prescription treatment for persistent or scarring cases.
Editorial Record
- Editorial status
- reviewed
- Medical reviewer
- Dr. Abdurrahman Efem
- Practical reviewer
- Merve Akkaya
- Last reviewed
- November 13, 2026
Frequently asked questions
Short answers to common questions
What causes pimples on the scalp?
Most scalp pimples are scalp folliculitis, an inflammation of hair follicles thought to be a reaction to bacteria, yeasts or mites that live there. Scratching and some oily hair products may add to it.
How do I get rid of scalp acne?
Wash regularly with a mild shampoo, consider an antidandruff shampoo with ketoconazole or ciclopirox, and avoid picking. If it persists or scars, a doctor can prescribe treatment.
Is it scalp acne or dandruff?
Dandruff and seborrheic dermatitis cause white to yellowish flakes and itch across patches of scalp. Scalp folliculitis causes separate small bumps or pustules, often at the hairline.
Can scalp acne be fungal?
Yeasts called Malassezia can be involved, which is why antidandruff shampoos sometimes help. A true fungal scalp infection (tinea capitis) is different and needs a doctor and prescription treatment.
Can scalp acne cause hair loss?
Hair loss is not a typical feature of mild scalp folliculitis. Rare deeper forms can cause scarring and patches of permanent hair loss, so see a dermatologist promptly if hair is thinning where the spots are.
Can hair products cause scalp acne?
Some can. The AAD notes many hair care products contain oil or other ingredients that can cause breakouts, and suggests choosing products labeled non-comedogenic.
Sources reviewed
Guidance behind this page
- DermNet: Scalp folliculitis.
- DermNet: Folliculitis.
- DermNet: Malassezia folliculitis.
- Gaffoor Bholah N, et al. Seborrhoeic dermatitis. DermNet, 2022.
- American Academy of Dermatology: Seborrheic dermatitis: Overview.
- American Academy of Dermatology: 10 skin care habits that can worsen acne.
Sources support general editorial guidance. They do not replace regional product labels, prescribing information or personal medical assessment.