Cervical exfoliative cytology is a method to detect cervical cancer by collecting exfoliated cells from the cervix by brushing them for pathological examination. It is suitable for women aged 21 or above who have sexual intercourse, and is used for screening of patients with chronic cervicitis, annual gynecological checkups, and routine examination items for uterus preservation surgery, and is not applicable to women with no sexual history and menstruation. Before and after the examination, there are the following precautions: 1. Before the examination: avoid menstruation, wait for 3-7 days after menstruation is completely clean before the examination, and abstain from sex, bathing, vaginal examination, vaginal irrigation and local medication for the first 3 days; 2. During the examination: the doctor will expose the cervix with a speculum and use the cervical cancer sampling brush to rotate the sample at the squamous-columnar junction of the cervix, which may be uncomfortable as the sample needs to be rotated several times, but within the It may be uncomfortable, but it is within the patient’s tolerance. It is recommended to assist the doctor to take the sample successfully at one time, so as to avoid pain caused by repeated sampling or inadvertently touching other parts and affecting the result; 3. Should take more rest, avoid strain, should not be strenuous exercise such as jumping rope, running, etc.. Diet should be light, try to avoid spicy, cold and stimulating food. If there is more than bleeding after examination, you can follow the doctor’s advice to use antibiotics, such as cephalosporins, appropriately. In addition, patients suspected of having cervical cancer should not rely on one cervical cancer exfoliative cell examination alone to confirm the diagnosis, but should also have colposcopic biopsy, vaginal ultrasound, tumor markers and other clear diagnosis.