Non-gonococcal urethritis mainly refers to urethritis caused by the invasion of pathogens other than gonorrhea, the most important causative agents are Chlamydia trachomatis and mycoplasma infection, which is a kind of sexually transmitted disease. The main clinical symptoms of non-gonococcal urethritis are mainly urinary tract irritation symptoms, such as frequent urination, urinary urgency, painful urination, etc. Some patients will have urethral discharge performance, more performance underwear soiling, etc. The clinical manifestations of non-gonococcal urethritis are different for men and women. The typical manifestations of non-gonococcal urethritis in men are stinging urethra and mild painful urination and burning sensation, mild redness and swelling of the urethral orifice, often with plasma or plasma-purulent discharge. The uterus is the main site of infection in women with non-gonococcal genitourinary tract infection. UTI symptoms are not obvious, with only mild urethral irritation or no symptoms at all. Cervical edema, flushing, and erosion are characteristic of the appearance of cervicitis, and increased leucorrhea and postcoital bleeding may occur. Male patients may have urinary tract inflammation such as epididymitis and prostatitis, while female patients may present with urethritis, cervicitis, and pelvic inflammatory disease. Non-gonococcal urethritis mostly has unclean sex with an incubation period of about 1-3 weeks, and then combined with the above-mentioned urological symptoms with urethritis. If there is a similar compatible situation, it is still recommended to go to a public hospital for consultation.