Chlamydia infection in men can present with fever, cough, headache, swollen eyelids, itchy urethra and pain in the epididymis. Chlamydia pneumoniae infection can cause acute respiratory infection with symptoms such as fever, persistent cough, sore throat, hoarseness and general malaise. Chlamydia trachomatis infection can cause trachoma, presenting with swollen eyelids, conjunctival congestion, and mucopurulent discharge. Chlamydia causes genitourinary infections, men can cause urethritis, manifested as urethral itching, tingling or burning sensation, painful urination or urethral discharge; epidemic epididymitis, manifested as pain in one or both epididymis; caused by prostatitis, manifested as slight pain or swelling in the area of the posterior urethra, perineum, anus and so on. The appearance of the above symptoms, it is recommended to go to the hospital in a timely manner, timely treatment.