Chlamydia trachomatis is a type of specific pathogen infection that can lead to Chlamydia trachomatis infection of the eye and Chlamydia trachomatis infection of the genitourinary system. Chlamydia trachomatis infection of the eye can lead to chlamydial conjunctivitis, which usually presents with symptoms such as conjunctival congestion, swelling, tearing, dryness of the eyes, and a foreign body sensation. After urogenital Chlamydia trachomatis infection, men mostly manifest as non-gonococcal urethritis, women manifest as urethritis, cervicitis, salpingitis and so on. Clinical symptoms will appear in different degrees of urinary frequency and urgency, urinary tract pain sensation when urinating, some purulent secretion visible at the urethra, especially in the morning when getting up, the secretion will be more. It is recommended that patients first go to the hospital to receive professional treatment.