Hi, and thank you for your question
Mycoplasma genitalium is a bacterium that can be sexually transmitted and in some instances can cause urethral symptoms in men, but often is asymptomatic. Many individuals carry this bacteria around normally and suffer no symptoms or harm from it, so we typically don’t test for it routinely.
There are many things that can cause urethral symptoms in men, or individuals with a penis. Those things can include sexually transmitted bacteria including chlamyida, gonorrhea and herpes. Non-sti microbes, such as the virus that causes the common cold passed through oral sex, can also cause these symptoms and are also harmless. Other irritants can include soaps, detergents, dehydration, yeast and fungal infections, and increased alcohol intake or nicotine use.
If all things are ruled out and urethral symptoms are persistent and bothersome, then certainly you could ask your family doctor for testing for mycoplasma.
Let us know if this does not answer your question or if you have any more questions or concerns.