Trachoma is a chronic infectious conjunctival keratitis caused by Chlamydia trachomatis, which needs to be diagnosed by a doctor based on a combination of ocular discomfort symptoms, ocular signs and laboratory tests. In the early stages, when trachoma first forms, there will be varying degrees of photophobia, and the eyes will experience discomfort such as tearing, itching, foreign body sensation, and increased discharge. In the acute stage, there will be redness and swelling of the eyelids and obvious congestion of the conjunctiva. In the chronic stage, there is papillary hyperplasia, and the conjunctiva of the upper and lower fornix is full of follicles. The eyelid conjunctiva is rough and uneven and shaped like a grain of sand when the eyelid is opened. Among laboratory tests, pathogen detection and molecular biology are the gold standard for confirming the diagnosis of trachoma. Chlamydia trachomatis usually adheres to the secretions from the patient’s eyes and can be transmitted by contact. In daily life, avoid sharing public objects such as handkerchiefs, towels and washbasins with others. If eye discomfort occurs, you should go to a regular hospital as soon as possible to avoid delaying your condition.