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Public Health Agency of Canada
 What you need to know about STI - Sexually Transmitted Infections
Sex is a normal and healthy part of our lives
How to know if you have an infection
What are my chances of catching an STI?
No STI for me!
How are STIs spread?
Types of STI:
- chlamydia
- gonorrhea
- trichomonas
- pubic lice and scabies
- genital herpes
- genital warts (HPV)
- hepatitis B
- syphilis
- HIV/AIDS
How to use a condom
Condom chat
- Use of a Male Condom
- Use of a Female Condom
Where to go for help
  What you need to know about STI - Sexually Transmitted Infections

Trichomonas or"trich"

Trichomonas is a germ that can be spread during sex.

It can cause vaginitis in women - an inflamed, sore and itchy vagina, sometimes with an unusual discharge. Very rarely trichomonas can lead to pelvic inflammatory disease (PID) - a serious infection in women.

If a woman who is pregnant has "trich", her baby may be born early or weigh less than normal.

Even if you don't have any symptoms you can still pass on "trich" to your partner if you are infected.

What to look for

Females:

  • frothy, off-white or yellowish-green vaginal discharge
  • itching and irritation of the genital area
  • vaginal odour
  • pain during sex
  • painful or frequent urination

Males:

  • Often males don't have any symptoms but they may experience:
  • slight discharge from the penis
  • burning sensation on urination
  • irritation and redness of the head of the penis

Trichomonas can be diagnosed by a swab of the discharge or infected area.

Trichomonas can be treated with pills, but both you and your partner (or partners) need to be treated to prevent you from getting the infection again.

You can protect yourself against "trich" by using a condom every time you have sex.

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Last Updated: 2006-05-01 Top