According to the CDC, Trich can stay dormant in a man for a very long time and it can be transmitted while the man is showing no symptoms. It is important for men to be tested for STD's on a regular basis because they can be infected and not show any symptoms. It is not common for men to be tested for Trich, but the test does exist and can be requested at your healthcare provider. T.H. 4:19PM re:call to CDC