Acne mechanica
Also called: Friction acne, Sports acne
Acne mechanica is acne or acne-like breakouts triggered by repeated friction, pressure, heat, or occlusion against the skin.
At a glance
- Common triggers include helmets, hats, masks, tight collars, sports gear, straps, and sweaty clothing.
- It often appears exactly where the rubbing or pressure happens.
- Reducing the physical trigger matters as much as choosing the right cleanser.
On this page
The short answer
Acne mechanica means breakouts triggered by mechanical stress on the skin.
The classic description comes from acne caused by pressure, rubbing, heat, and occlusion[1]. In normal life, think helmets, chin straps, sweaty hats, tight collars, sports gear, and backpack straps.
How to use the word
Acne mechanica usually shows up where the physical trigger sits.
That is the clue:
- forehead bumps under a helmet
- jawline spots from a chin strap
- shoulder or back acne under sports gear
- cheek bumps where a mask or phone rubs
Acne guidelines[2] still matter for treatment options, but the first step is practical: reduce the trigger. You cannot salicylic-acid your way out of a dirty helmet liner forever.
Mads's practical read
When the breakout follows a friction pattern, fix the friction pattern.
Then use a gentle acne routine. The skin usually improves faster when you stop creating the same irritation every day.
Keep reading
Dictionary
Comedone
Dictionary
Comedolytic
Ingredient
Salicylic acid
Ingredient
Benzoyl peroxide
Ingredient
Niacinamide
Condition
Acne and blemishes
Condition
Blackheads
Condition
Oily skin
Guide
How to prevent workout breakouts
Guide
How to get rid of back acne without punishing your skin
Guide
How to get rid of forehead acne without attacking your whole face
Common questions
What causes acne mechanica?
Repeated pressure, rubbing, heat, sweat, or occlusion can trigger breakouts, especially in people who are already acne-prone.
How do you treat acne mechanica?
Reduce the friction first, cleanse gently, wash gear and clothing, and use acne actives such as salicylic acid only at a tolerable frequency.