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Acne quiz

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  • What is the primary causative bacterium of acne?
    Cutibacterium acnes (formerly Propionibacterium acnes) is the main bacterium responsible for most acne cases.
  • Why does acne commonly develop during puberty?
    Hormonal changes during puberty trigger excess sebum production, which promotes the growth of Cutibacterium acnes.
  • What is the difference between whiteheads and blackheads in acne?
    Whiteheads are closed comedones that remain light colored, while blackheads are open comedones that appear dark due to oxidation.
  • Is acne contagious?
    No, acne is not contagious because Cutibacterium acnes is a normal part of the skin microbiome.
  • What are the main factors that contribute to the development of acne?
    Clogged hair follicles, inflamed oil glands, excess sebum, and genetic factors contribute to acne development.
  • What is nodular cystic acne?
    Nodular cystic acne is a severe form characterized by deep inflamed lesions (nodules and cysts) with potential for scarring.
  • How is acne typically diagnosed?
    Acne is usually diagnosed through visual inspection of the skin.
  • What topical treatments are commonly used for mild acne?
    Benzoyl peroxide and salicylic acid are commonly used topical treatments for mild acne.
  • What antibiotics may be used to treat moderate or severe acne?
    Tetracyclines and macrolides are antibiotics used for moderate or severe acne.
  • Why do blackheads appear dark?
    Blackheads appear dark due to oxidation, not because of dirt.
  • Can acne cause psychological effects?
    Yes, severe acne can cause psychological effects due to scarring and its impact on self-esteem.
  • Are there any vaccines available for acne?
    No, there are no vaccines for acne because it is caused by normal skin bacteria and not a single invading pathogen.
  • What is the role of sebum in acne development?
    Sebum provides nutrition for Cutibacterium acnes, leading to its proliferation and inflammation.
  • What other bacteria besides Cutibacterium acnes can contribute to acne?
    Staphylococcus aureus can also contribute to some cases of acne.
  • What are some non-antibiotic treatments for moderate or severe acne?
    Blue light, laser light, and intense heat pulse treatments can be used for moderate or severe acne.