There is a certain amount of pain associated with the induction of labor after 3 months of pregnancy, but the exact degree of pain varies from person to person due to different levels of personal tolerance. The pain of induced labor is mainly caused by the following aspects: 1. pain causes 1. cervical canal dilation: the clinical application of drugs to stimulate uterine contraction, promote cervical softening, so that the pregnancy sac and placenta expulsion, cervical canal dilation can cause abdominal pain; 2. uterine scratching: after the embryo expulsion need to carry out ultrasound examination, if there is residual tissue in the uterine cavity, the need to perform a clearance operation to completely remove the residual tissue, scraping The operation is usually accompanied by more obvious pain; 3. uterine contraction: when the uterus is contracted by drug stimulation, the vagus nerve next to the cervix is stimulated to excite, which leads to spasmodic colic of the uterus. 2, pain relief 1, position: if you feel pain after induction of labor, you can take a side sleeping position, avoid standing or sitting for a long time; 2, massage: circular massage or hot compresses in the abdomen to relieve the pain of contractions; 3, drugs: if the pain is heavy, you can use some painkillers under the guidance of a doctor to relieve; 4, clearance: if severe pain after induction of labor, do not exclude the residual embryonic tissue infection in the uterine cavity It is necessary to go to the hospital for examination to clarify the cause so as to solve the pain problem. After induction of labor, you should pay attention to rest, avoid overworking, keep warm, eat lightly, observe the vaginal bleeding at any time, and seek medical attention and treatment when abnormalities occur.