Before colposcopy, you should pay attention to the time of examination, avoid sexual intercourse and vaginal administration of drugs. After colposcopy, you should pay attention to the cleanliness of the vulva and avoid strenuous exercise. Colposcopy can directly observe the epithelial lesions of the vagina and cervix through colposcope under strong light source irradiation, magnifying 6 to 20 times, so as to observe the smaller lesions of the vagina and cervix which are invisible to the naked eye, and perform localized biopsy in the suspicious part, so as to improve the diagnostic rate. Before colposcopy, it is necessary to pay attention to the examination time, within 3 to 7 days after menstruation or more than 10 days before the next menstruation. Stop vaginal douching and medication within 48 hours before the examination, and prohibit sexual intercourse. A routine leukorrhea test is also required before the examination to ensure that there is no inflammation before the colposcopy is performed. Colposcopy at the same time if the cervical biopsy, biopsy with a cotton ball to stop bleeding, within 24 hours to remove the hemostatic cotton ball, to avoid strenuous exercise, to observe the bleeding of the wound. 2 weeks to avoid the pelvic bathing and sexual intercourse, to keep the vulva clean and hygienic. Do not be overly nervous during colposcopy, try to cooperate with the doctor’s operation and follow the doctor’s instructions for follow-up.