Women will not be infected with chlamydia for no reason. Chlamydia may be caused by not paying attention to vaginal hygiene, sexual contact, and contact with objects used for carrying infected chlamydia. 1. Not paying attention to vaginal hygiene: If women don’t pay attention to the cleanliness of the vaginal area, don’t pay attention to the sorting and washing of close-fitting underwear, and the vagina is in the state of dampness and warmth for a long time, etc., all of them will lead to chlamydia infection. 2. Sexual contact: not taking barrier contraception when having sex, as well as sexual partners suffering from chlamydia infectious diseases, etc., will lead to a greater chance of chlamydia infection in women. 3. Exposure to chlamydia-carrying objects: frequent visits to public baths or swimming pools and the use of common towels, washcloths, tubs and other chlamydia-carrying objects can also lead to chlamydia infection in women. In addition to the above reasons, mother and child vertical infection, low immunity and so on can cause chlamydia infection in women, should go to the regular hospital in time, under the guidance of professional doctors to carry out targeted treatment.