Trichomonas vaginalis and bacterial vaginosis. Coexistence in vaginal wet mount preparations from pregnant women

J Reprod Med. 2000 Feb;45(2):131-4.


Objective: To identify how frequently trichomoniasis and characteristics of bacterial vaginosis (BV) occur concomitantly in wet mount preparations from pregnant women.

Study design: Diagnosis of trichomoniasis was predicted on visualization of the organism. Diagnosis of BV required a positive volatile (whiff) test, presence of "clue cells" and one of two minor criteria: (1) absence of lactobacilli, or (2) a pH > 4.5. Pregnant women from January 1995 to July 1997 at our clinic had wet mount/KOH preparations performed as standard prenatal care. Corresponding medical charts were analyzed for symptoms, race, BV, sexually transmitted diseases, urinary tract infections and other infections.

Results: Of 191 pregnant women identified, 69 had trichomoniasis. Seventy-nine percent of the 69 were African American. Fifteen percent of pregnant women (17) had concomitant trichomoniasis and BV. Irrespective of race, 35-38% of pregnant women with trichomoniasis had another sexually transmitted disease or a urinary tract infection diagnosed in that pregnancy.

Conclusion: BV, or bacteria excess syndrome, is a frequent coinfection in pregnant women harboring Trichomonas vaginalis.

MeSH terms

  • Adolescent
  • Adult
  • Animals
  • Comorbidity
  • Female
  • Humans
  • Incidence
  • Pregnancy
  • Pregnancy Complications, Infectious / microbiology*
  • Pregnancy Complications, Infectious / parasitology
  • Risk Factors
  • Sexually Transmitted Diseases / complications
  • Sexually Transmitted Diseases / microbiology
  • Trichomonas Vaginitis / microbiology*
  • Trichomonas Vaginitis / pathology
  • Trichomonas vaginalis / pathogenicity*
  • Vaginosis, Bacterial / microbiology*
  • Vaginosis, Bacterial / pathology