White discharge from the genitals is commonly associated with non-gonococcal urethritis. Non-gonococcal urethritis is a sexually transmitted disease, and the common causative agents are mainly Mycoplasma solium, Chlamydia trachomatis, and so on. After infecting the human urinary mucosa, it causes an increase in white urethral discharge and clinical symptoms such as burning urine and stinging urine. For this disease generally need early treatment to cure the disease, need to choose sensitive antibiotics for treatment, commonly used antibiotics are mainly doxycycline, azithromycin and so on. Most patients can be cured through medication. During the treatment period, patients are not allowed to have sexual intercourse to avoid transmission to others through sexual contact. For male patients, avoiding unclean sexual life as much as possible can prevent non-gonococcal urethritis.