Chlamydia infection left untreated for a long time may lead to urethritis, cervicitis, pelvic inflammatory disease, vaginitis, intrauterine infections, birth canal infections, and puerperal infections. Chlamydia is a common sexually transmitted disease, and the main causative agent is Chlamydia trachomatis. After infection, women mainly have frequent urination, urinary urgency, painful urination, excessive vaginal discharge, purulent discharge and hidden pain in the lower abdomen; chlamydia infection in pregnancy can easily lead to intrauterine infections, resulting in chorioamnionitis, preterm labor, and fetus infection through the contaminated birth canal in the process of labor and delivery. Men with long-term infection of chlamydia without treatment will lead to frequent urination, urinary urgency, urinary pain, itchy urethra, white discharge from the urethra, combined with bacterial infections may appear pus discharge; itching, redness and swelling of the urethral orifice, and stains and stains on the underwear. Men or women appear urinary symptoms, women appear vaginal discharge, timely to the hospital examination, clear diagnosis, timely standardized treatment, to avoid aggravation of the condition. During the treatment, coitus is strictly prohibited, and sexual partners need to be examined and given treatment if necessary.