Non-gonococcal urethritis is a sexually transmitted disease. Symptoms that may occur after infection: 1. Symptoms of urinary tract irritation, the appearance of frequent urination, urinary urgency and painful urination. This is the first symptom that appears, and it is also a more typical symptom. 2. itching, burning or chronic pain in the urethra, etc., anti-infection treatment is ineffective, and the symptoms can exist for a long time. 3. yellow or white thin discharge appears in the urethra, and sometimes if the discharge is small, dry crust can paste the urethral orifice, and in the morning when you get up, you find staining on your underwear or dry crust of infected discharge in the urethra. 4. the appearance of urination The symptoms of fever can appear, the temperature is mostly low and can last for a long time, and the treatment with common anti-infective drugs cannot make the temperature drop.