You should not have sex one week before the cervical cancer screening. This is because sexual intercourse is likely to bring pathogenic bacteria into the vagina, which can lead to mild damage to the cervical mucosa when the specimen is taken for cervical cancer screening. If there are pathogenic bacteria in the vagina may follow the damage fissure and infection, which causes the possibility of chronic cervicitis. In addition, coitus may also cause that the vision is not very clear when taking the specimen, so coitus is not allowed before the cervical cancer examination. In addition, one week before the cervical cancer test, you should not take vaginal pills or douche, so as not to affect the test result. It is also recommended that married women should undergo cervical cancer screening once a year even if they do not have any discomfort.