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Trichomoniasis (in females)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

This is most common in females between 18 and 35 years. It is usually, but not always, sexually acquired. The incubation period is 4 days to 3 weeks.

Trichomoniasis can increase the risk of HIV infection. It is also associated with (1,2):

  • pelvic inflammatory disease
  • pregnancy complications including preterm delivery and low birth weight
  • infections after delivery, surgery, and abortion

Key points (3):

  • oral treatment needed as extravaginal infection common
  • treat partners, and refer to GUM for other STIs.
  • pregnant/breastfeeding:
    • avoid 2g single dose metronidazole;
    • clotrimazole for symptom relief (not cure) if metronidazole declined


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