Trichomoniasis
DEFINITION
Trichomoniasis is a sexually transmitted infection caused by a parasite. In women, trichomoniasis can cause a foul-smelling vaginal discharge, genital itching and painful urination. Men who have trichomoniasis typically have no symptoms. Pregnant women who have trichomoniasis may be at higher risk of delivering their babies prematurely.
To prevent reinfection with the organism that causes trichomoniasis, both partners should be treated. The most common treatment for trichomoniasis involves taking one megadose of metronidazole (Flagyl, Tindamax). You can reduce your risk of infection by using condoms correctly every time you have sex.
CAUSES
Trichomoniasis is caused by a one-celled protozoan, a type of tiny parasite that travels between people during sexual intercourse. The incubation period between exposure and infection is unknown, but it’s thought to range from five to 28 days.
SYMPTOMS
Many women and most men with trichomoniasis have no symptoms, at least not at first. Trichomoniasis signs and symptoms for women include:
- A profuse and often foul-smelling vaginal discharge — which may be white, gray, yellow or green
- Genital redness, burning and itching
- Pain with urination or sexual intercourse
Trichomoniasis rarely causes symptoms in men. When men do have signs and symptoms, however, they may include:
- Irritation inside the penis
- Burning with urination or after ejaculation
- Discharge from the penis
When to see a doctor
See your doctor if you have a foul-smelling vaginal discharge or if you experience pain with urination or sexual intercourse.
