Trichomoniasis (“Trich”) is a very common and treatable STI caused by infection with Trichomonas vaginalis (a protozoan parasite).

Most people who have trichomoniasis don’t have symptoms, so they can spread the infection without knowing it.

Risks

• spreads through vaginal sex without a condom with a partner who has the infection

Symptoms

• Most people who have trichomoniasis don’t have symptoms, so they can spread the infection without knowing it

Men

• itching or irritation inside the penis
• burning after peeing or ejaculating
• discharge from the penis

Women

• itching, burning, redness or soreness of the genitals
• discomfort when peeing
• clear, white, yellowish, or greenish vaginal discharge with a fishy smell

Testing

• detected by a lab test
• may be a swab for vaginal fluid or a swab inside the penis
• sometimes a urine sample

Treatment

• treated and cured with antibiotics
• repeat infection is possible

Source and more info: CDC – Trichomoniasis