Urethral itching is normally caused by urethritis, such as non-specific urethritis, gonorrheal urethritis, non-gonococcal urethritis and so on. 1. non-specific urethritis: mainly caused by common bacterial infections, mostly caused by poor hygiene, the presence of bacterial infections in the urethra will cause urethral itching, accompanied by urinary urgency, urinary pain and other symptoms. 2. Gonococcal urethritis: a sexually transmitted disease, the causative organism is gonococcus, which can make the urethra appear obvious itching, accompanied by urethral burning sensation, the urethral orifice area will appear yellow purulent secretion. 3. Non-gonococcal urethritis: usually caused by mycoplasma, chlamydia and other pathogenic bacteria infections, the majority of patients have unclean sex, may also be related to indirect contact, will cause urethral itching, urethral stinging, urinary frequency, urinary urgency. Urethral itching, and accompanied by other abnormalities, should be vigilant for urethritis, it is recommended to consult a doctor for examination and treatment.