Trichomonas vaginalis

WHAT IS IT?

Trichomonas vaginalis is a parasitic flagellated protozoan.

Microscopic appearance of Trichomonas
Microscopic appearance of Trichomonas vaginalis (source)
ORANISM CHARACTERISTICS

Flagellated: these organisms have a flagella and are motile when viewed under the microscope.

Lack of cysts: This organism can not exist outside the human host because it can not form cysts.

Life cycle of Trichomonas vaginalis (source)
Life cycle of Trichomonas vaginalis (source)
TRANSMISSION

Sexual contact: this parasite is sexually transmitted. Condoms may reduce the rate of transmission.

CONDITIONS CAUSED

Trichomoniasis: this manifests as a vaginitis in women, and a urethritis in men.

TREATMENT

Metronidazole is the antibiotic used to treat the affected patient (and also for partner prophylaxis).

OTHER HY FACTS

This is the only protozoan that never exists in cyst form. This is because it never leaves the host and is sexually transmitted.

 

Page Updated: 09.04.2016