Well, for women Ureaplasma urealyticum or UU isn't straight forward. That may be why there are conflicting reports. The thing is for women is that she has to have symptoms generally to get treated. These would be seen by the doctor as exudate in the cervical canal, endocervical bleeding, vaginal discharge, bleeding after sex and in a lab test >10 white blood cells per high power field. These don't help you much but you see the doctor and/or lab has to see these things on exam. Generally, they would treat her then with specific antibiotics at a specific concentration. For men if they have symptoms they treat them. If they test positive I think they treat them too. So if you are both positive you probably should both be treated. It is a suggestion. I would ask your doctor about it. Usually, women don't always show symptoms and can end up with a lot of internal problems. UU is an STD it is associated with Non-gonococcal urethritis in men and cervicitis in women and sometime Pelvic inflammatory disease. I hope this sort of makes you understand the overall picture. It is based on symptoms and lab work especially for women. For men they generally are more straight forward and if they have it usually are treated. Also, if one partner has is both usually are treated.