Trichomonas vaginalis is a sexually transmitted infection (STI). It is sometimes referred to as trichomonas or trichomoniasis, or shortened to TV. Trichomonas vaginalis is a tiny parasite which causes an infection. In women the infection can be found in the vagina and the urethra (tube where urine comes out). In men it can be found in the urethra. The infection is easily passed from one person to another through sexual contact. Anyone who is sexually active can get it and pass it on. You don’t need to have lots of sexual partners.
Symptoms in women - abnormal vaginal discharge that may be thick, thin or frothy and yellow-green in colour, producing more discharge than normal, which may also have an unpleasant fishy smell, soreness, inflammation (swelling) and itching around the vagina – sometimes the inner thighs also become itchy pain or discomfort when passing urine or having sex
Symptoms in men - pain during urination or ejaculation, needing to urinate more frequently than usual, thin white discharge from the penis, soreness, swelling and redness around the head of the penis (balanitis) or foreskin (balano-posthitis)
Trichomonas is unlikely to go away without treatment, however, for some people, trichomonas may cure itself. If you delay seeking treatment you risk passing the infection on to someone else.
It is strongly advised that you do not have any sexual intercourse, including vaginal, anal or oral sex until you and a partner have both finished the treatment and any follow-up treatment. This is to help prevent you being reinfected or passing the infection on to someone else.
Treatment - Metronidazole 400mg: ONE to be taken TWICE a day for SEVEN days