Mycoplasma, chlamydia infection of the human urethral mucosa, in addition to causing white discharge from the urethra, there will be symptoms such as tingling penis when urinating, patients need to be clearly diagnosed through the mycoplasma, chlamydia-related genetic testing. Treatment requires the use of sensitive antibiotics, commonly used mainly azithromycin and doxycycline and so on. Non-gonococcal urethritis belongs to sexually transmitted diseases, during the treatment period patients should abstain from sexual intercourse to avoid cross infection.