<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have been in a monogamas relationship for years was seen by gyn 3yr ago was fine! Still with Same partner and I go to gyn last week -that said I had trichomoniasis! My partner went to get checked and he says he donot have it!! How is this possible??? I have not been with any one else!!! So how I have it and he doesn t?-we been together 15yrs. Now he thinks I cheated!!  <response>: Hi, Thanks for the query. I understand your concern. Trichomoniasis is a protozoal infection spread mostly by sexual relations vaginal, oral or anal sex. - Only possibility of its nonsexual transmission can be use of contaminated towel from a toilet seat. - Many a times symptoms are evident earlier in women due to the peculiar physical conditions though male partner is infected he may not suffer from the symptoms. -Itching white discharge is seen in females with diabetes after menopause due to vaginal Candidiasis...which is not sexually transmitted it can be differentiated from trichomoniasis by careful inspection microscopic swab testing. So you need to rule out all these possibilities before blaming each other misunderstanding. Thanks 