Trichomoniasis: Symptoms & Signs

Medically Reviewed on 1/8/2020

Trichomoniasis is a sexually transmitted infection (sexually transmitted disease or STD). The infection can occur in both women and men, and it spreads by sexual contact. Trichomonas infection is more common in women than in men.

Many people may have trichomonas infection and not show any symptoms or signs. In others, the infection causes specific symptoms that can include

Other associated symptoms can include

Symptoms and signs can appear for up to 28 days after exposure to the parasite.

Cause of trichomoniasis

Infection with the parasite Trichomonas vaginalis causes trichomoniasis.

Other trichomoniasis symptoms and signs

  • Cervical Inflammation
  • Pain or Discomfort During Sexual Intercourse or During Urination
  • Urethral Discharge in Men
  • Vaginal Discharge
  • Vaginal Inflammation
  • Vaginal Irritation
  • Vaginal Itching
  • Vaginal Odor
  • Vaginal or Urethral Burning
  • Vulvar Inflammation and Redness


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Jameson, J. Larry, et al. Harrison's Principles of Internal Medicine, 20th Ed. New York: McGraw-Hill Education, 2018.