Non-gonococcal urethritis is most often considered in men with painful itching in the urethra. In addition to itching and pain in the urethra, it is often accompanied by a burning sensation, which can be mild or severe, as well as a small amount of thin plasma discharge and a markedly ectopic, red or swollen urethra. Blood and urine tests, chlamydia and mycoplasma cultures and other relevant tests are required. Erythromycin, levofloxacin, azithromycin and other drugs can be used after the diagnosis is confirmed. All symptoms disappear and then rechecked to ensure clinical cure. Also, this disease is mostly a sexually transmitted disease, and those who have sexual partners need to have their sexual partners examined and treated at the same time if they also have this disease.