Green pus in the genitals may be caused by conditions such as urinary tract infection, gonorrhea and cystitis in men, and may be related to conditions such as trichomoniasis, cervicitis and gonorrhea in women. 1. Urinary tract infection: men will have symptoms such as frequent urination, urgency, painful urination, etc. In severe cases, there will be pain in the lower back, hematuria visible to the naked eye, purulent discharge and other symptoms. 2. Gonorrhea: male patients will have pain in the urethra, the urethral orifice will appear purulent discharge, purulent discharge may show yellowish-green. Female patients will have bloody or purulent vaginal discharge, which may also be yellow-green pus. 3. Cystitis: patients will have lower abdominal pain, urinary pain, urinary urgency and other symptoms, severe cases will be accompanied by purulent urine. 4. Trichomonas vaginitis: women will experience itching of the vaginal opening, increased vaginal discharge, putrid smell of the discharge, yellowish white or yellowish green in color, accompanied by pain during sexual intercourse. 5. Cervicitis: patients will have yellowish or yellowish-green discharge, and the discharge will increase and have a bad odor. It is usually accompanied by abnormal vaginal bleeding and painful intercourse. There are more reasons for green pus in the genitals, so it is recommended that patients seek timely medical attention, make a clear diagnosis, and actively treat it.