30 yo male. is ngu harmless if its not from chlamydia or gonorrhea? will ngu affect my female partner?

NGU harm?: Good questions, and unfortunately the answers are uncertain. Most cases indeed probably are harmless for both affected men and their partners. But some may be harmful, perhaps especially in that minority (10-15%) caused by Mycoplasma genitalium -- but M gen testing isn't routine in most labs. To be maxcimally safe, female partners should be treated, but it's not known if it's really necessary