Clogged pores or blocked oil glands can also cause these bumps. Heavy lip products, shaving, sweating, tight clothing, friction, cosmetics, or hygiene products may irritate the skin and make them more noticeable.
In some cases, bacterial or fungal infections may be responsible, especially when the skin is already irritated or damaged. Squeezing or scratching the bumps can make the problem worse and may cause infection or scarring.
Most small white bumps disappear on their own, but medical advice is recommended if they become painful, grow, spread, or remain for several weeks. Good hygiene and avoiding irritating products can help prevent further problems.
