Health topic · Dermatology

Acne

MedlinePlus, National Library of Medicine · Retrieved 2026-10-13

Acne is a common skin disease that causes pimples. Pimples form when hair follicles under your skin clog up. Most pimples form on the face, neck, back, chest, and shoulders. Anyone can get acne, but it is common in teenagers and young adults. It is not serious, but it can cause scars. No one knows exactly what causes acne. Hormone changes, such as those during the teenage years and pregnancy, probably play a role. There are many myths about what causes acne. Chocolate and…

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Reference details

MedlinePlus topic groups
Skin, Hair and Nails
Also called
Pimples; Zits
MeSH terms
Acne Vulgaris
XML release date
10/13/2026 02:30:36

Overview

Acne is a common skin disease that causes pimples. Pimples form when hair follicles under your skin clog up. Most pimples form on the face, neck, back, chest, and shoulders. Anyone can get acne, but it is common in teenagers and young adults. It is not serious, but it can cause scars. No one knows exactly what causes acne. Hormone changes, such as those during the teenage years and pregnancy, probably play a role. There are many myths about what causes acne. Chocolate and greasy foods are often blamed, but there is little evidence that foods have much effect on acne in most people. Another common myth is that dirty skin causes acne; however, blackheads and pimples are not caused by dirt. Stress doesn't cause acne, but stress can make it worse. If you have acne: • Clean your skin gently • Try not to touch your skin • Avoid the sun Treatments for acne include medicines and creams. NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

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Retrieved: 2026-10-13. Text has been organized for reading; this import has not been independently reviewed by a clinician. It is not individualized medical advice.
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