Some say ureaplasma doesnt cause ngu, if all other normal culture tests were negative (trich, m gen, sti panels , viral tests including rna testing), what else could cause the ngu?? getting a microgendx soon but just wondering what is common?

NGU results from chlamydia (20-30% of cases) and Mycoplasma genitalium (15-20%); and uncommonly Ureaplasma (maybe), herpes, trichomonas, herpes, other viruses (like adenovirus) (under 5% each). All totaling ~50%. The causes of the other 50% of cases are entirely unknown; research on this has been unsuccessful for several decades. MicroDX has not been studied in NGU, but unlikely to be helpful.

Urethritis can be infectious or non infectious and a if not the former then needs investigation to find cause - by a Urologist. 'Some say' are usually unqualified people. . Good luck