Trichomoniasis

Trichomoniasis, “Trich”, is a very common STD caused by the protozoan parasite, Trichomonas vaginalis. Coinfection with other STDs and bacterial vaginosis is very common.  Most people who have the parasite cannot tell they are infected.


How is Trichomoniasis spread?

Trichomoniasis is contracted by having oral, vaginal, or anal intercourse with someone who has the disease.

 Signs and Symptoms of trichomoniasis:

About 70% of infected people do not have any signs or symptoms. When trichomoniasis does cause symptoms, they can range from mild irritation to severe inflammation. Some people with symptoms get them within 5 to 28 days after being infected. Others do not develop symptoms until much later. Symptoms can come and go.

Men with trichomoniasis may notice:

  • Abnormal Discharge from the penis, 
  • Itching or irritation 
  • Itching inside the penis
  • Burning after urination or ejaculation

Women with trichomoniasis may notice:

  • Can range from not showing any symptoms to immediate onset of severe inflammatory disease.
  • A change in vaginal discharge may be -purulent malodorous thin discharge (fishy smell), increased discharge, discharge can be clear, white, yellowish, or greenish 
  • Itching
  • Burning
  • Discomfort with urination
  • Urinating frequently
  • Painful sex
  • Redness or soreness of the genitals

Without treatment, this infection can last for up to 3 months, or even years, so it is difficult to determine when or with whom the infection was acquired.

If left untreated it may progress causing:

  • In men, urethritis or cystitis
  • In women, may cause cervical neoplasia and infertility

What is the treatment for trichomoniasis?

Trichomoniasis can be treated with either metronidazole or tinidazole. It is not recommended to drink alcohol within 24 hours after taking this medication. Re-infection occurs in about 1 in 5 people, usually within months after getting treated. Make sure that all sex partners get treated. Wait at least 7- 10 days after treatment and all symptoms resolved before resuming sexual activity. 

Where can I get more information?

STD information and referrals to STD Clinics
CDC-INFO
1-800-CDC-INFO (800-232-4636)
TTY: 1-888-232-6348