The internal examination does not usually stimulate fetal initiation, i.e., the phenomenon of labor; it may cause a small amount of vaginal bleeding after the internal examination test, so do not worry too much. If abdominal pain or regular uterine contractions occur, this is often a sign that labor is about to occur. After the internal examination, because the estrogen level rises during pregnancy, causing the cervical columnar epithelium to move outward, so that the cervical area is in a state that is prone to contact bleeding, so the doctor will cause a small amount of vaginal bleeding due to some friction and irritation to the cervical columnar epithelium after the internal examination, which generally does not need to be treated or worried about. Generally speaking, after the doctor conducts the internal examination, due to the relatively mild degree of examination, there is often no significant contraction stimulation, the doctor through the internal examination to understand the position of the cervix, the size, the softness and hardness of the cervix, as well as the cervical canal is shortened, the cervical os is dilated, the fetal prelude site in relation to the pelvis and so on, to carry out a comprehensive cervical condition score. Therefore, it is very important for pregnant women to have an internal examination before labor, but there is no need to worry about preterm labor or early delivery due to the internal examination, and if any discomfort occurs, please consult a doctor immediately.