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  1. Acne - Symptoms and causes - Mayo Clinic

    Jul 20, 2024 · Overview Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. It causes whiteheads, blackheads or pimples. Acne is …

  2. Acne Types, Causes, & Risk Factors | NIAMS

    Acne is a common skin condition that happens when hair follicles under the skin become clogged. Sebum—oil that helps keep skin from drying out—and dead skin cells plug the pores, which …

  3. Acne - Wikipedia

    Acne, also known as acne vulgaris, is a long-term skin condition that occurs when dead skin cells and oil from the skin clog hair follicles. [10] Typical features of the condition include …

  4. Acne: Types, Causes, Treatment & Prevention - Cleveland Clinic

    Jan 4, 2023 · Acne is a common skin condition that causes pimples on your skin. These usually form on your face, chest and back. Treatment helps clear acne.

  5. Acne | Blackheads | Pimple | Zits | MedlinePlus

    Oct 12, 2024 · Looking for ways to fight unsightly zits? Both teens and adults can get acne. Learn what causes pimples and blackheads and how to manage them.

  6. Acne - Johns Hopkins Medicine

    Acne affects teens and adults of all ages. It occurs when oil secreted by sebaceous glands clogs the hair follicle. Bacteria infect the clogged follicle and cause pimples.

  7. Acne Causes: What Is Acne and Why Do I Have It? - WebMD

    Apr 27, 2025 · What is acne? Get the basics on this skin condition from the experts at WebMD.

  8. Acne: Treatment, Types, Causes, Prevention, and More - Healthline

    Jun 26, 2023 · When oil, bacteria, dead skin, and dirt block your pores, you may develop pimples or acne. Get the details on acne causes, treatment, and prevention.

  9. Acne: Causes, treatment, and tips - Medical News Today

    Jul 15, 2025 · Acne is a condition where oils glands of the skin become clogged, forming spots, pimples, and sometimes cysts. Almost three-quarters of all people from age 11 to 30 will …

  10. Acne: Overview - American Academy of Dermatology

    Acne is the most common skin condition in the United States. Although it's common, accurate information about acne can be scarce. This information can help you understand acne and …