Acne is a common skin condition that occurs when pores become clogged with oil, dead skin cells, and bacteria. It often appears on the face, chest, shoulders, and back. Acne can affect people of all ages, but it is especially common during the teenage years because of hormonal changes. Stress, certain skin products, and genetics may also contribute to breakouts.
Acne can often be managed by washing the skin gently, avoiding picking or squeezing pimples, and using non-comedogenic skin-care products that do not clog pores. Treatments containing ingredients such as benzoyl peroxide or salicylic acid may help mild acne. More severe or persistent acne should be evaluated by a dermatologist, who can recommend prescription treatments and help reduce the risk of scarring.