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Pimples

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Microbiology

Definition

Pimples are small, inflamed spots on the skin caused by clogged hair follicles, often due to bacteria, dead skin cells, and oil buildup. They are a common symptom of bacterial skin infections.

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5 Must Know Facts For Your Next Test

  1. Pimples are primarily caused by the bacterium Propionibacterium acnes (P. acnes).
  2. They commonly occur on the face, neck, back, and shoulders due to high concentrations of sebaceous glands.
  3. Inflammation and subsequent pimple formation can be exacerbated by hormonal changes, stress, and poor hygiene.
  4. Topical antibiotics and benzoyl peroxide are often used to treat bacterial causes of pimples.
  5. Severe cases of pimples can lead to cystic acne, which may require more intensive treatment such as oral antibiotics or retinoids.

Review Questions

  • What bacterium is most commonly associated with the formation of pimples?
  • Which areas of the body are pimples most likely to appear?
  • What treatments are commonly used for bacterial causes of pimples?

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