Trichomoniasis is spread through intimate contact. This means not only sex, the penis in the vagina, but any touching of genitals or sex toys from the infected person to a partner, can spread trichomoniasis.
Trichomoniasis is a single-celled orgranism with a flagella, or tail, that can move through the secretions of the vagina and penis. It can be seen on a microscope at an office visit. It causes a fishy odor, discharge, itching and sometimes redness. There are other things that can cause similar symptoms, so it needs to be checked and diagnosed by a health care provider. It is treated and cured with specific antibiotics.