Chlamydia infection in men may lead to diseases such as trachoma and urethritis, and asymptomatic people who are left untreated may have no effect, or it may lead to consequences such as male infertility. Chlamydia is an atypical pathogen, and common chlamydial infectious diseases include trachoma, pneumonia, and urethritis. If left untreated, trachoma may further deteriorate into corneal ulcers or even lead to blindness, pneumonia due to chlamydia infection may further deteriorate leading to lung function impairment, and urethritis may further deteriorate leading to male infertility and other damages. In the presence of the above infectious diseases, it is recommended to go to the hospital in time for acute treatment. For diseases such as trachoma, topical medications such as rifampicin eye drops and erythromycin eye ointment may be used for intervention. For diseases such as chlamydia pneumonia, erythromycin, erythromycin and other drugs can be used for intervention. In summary, men with chlamydial infections should seek medical attention in a timely manner. The above drugs, need to be used under the guidance of clinicians.