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  1. Acne - Symptoms and causes - Mayo Clinic

    Jul 20, 2024 · 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 most common among …

  2. Acne - Wikipedia

    Acne ... 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]

  3. Acne - Canadian Dermatology Association

    Several factors can make acne flare up or lead to breakouts, but the triggers can vary from person to person. Every person is different. You can help to control the condition by avoiding things that you …

  4. 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.

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

    Acne is a common skin disorder that results in blocked skin follicles. Learn the types & causes of acne.

  6. Acne | Blackheads | Pimple | Zits | MedlinePlus

    Oct 12, 2024 · Both teens and adults can get acne. Learn what causes pimples and blackheads and how to manage them.

  7. Acne - Skin Disorders - Merck Manual Consumer Version

    Acne is a common skin condition causing pimples and other abnormalities on the face and upper torso. Acne is caused by a buildup of dead skin cells, bacteria, and dried sebum that blocks the hair …

  8. 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 how to …

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

    Jul 15, 2025 · Acne is a skin disease involving the oil glands at the base of hair follicles. It affects 3 in every 4 people aged 11 to 30 years. It is not dangerous, but it can leave skin scars. Treatment...

  10. 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.