40 weeks without pelvic hospitalization hypnosis success rate is not certain, and with pregnant women delivery, fetal size and so on have a certain relationship. Primigravida mostly in late pregnancy into the pelvis, but not absolute, such as amniotic fluid, can affect the fetus into the pelvis; menstruating mothers can be in late pregnancy into the pelvis, but also in the process of labor and delivery into the pelvis. In these two cases, induction of labor can be attempted, but the success rate of induction of labor is not certain because there are many factors affecting the outcome of induction of labor, such as cervical ripeness and fetal heart condition. When the fetus is so large that its diameter exceeds the level of the maternal pelvic inlet, non-pelvic insertion may occur, in which case induction of labor is almost impossible and surgical termination of the pregnancy is usually required. If the patient is not admitted to the pelvis at 40 weeks of pregnancy, the patient can calculate the week of pregnancy and complete ultrasound and other examinations to assess the size of the fetus, amniotic fluid and other conditions and check the size of the mother’s pelvis, and according to the results of the examination, follow the doctor’s instructions for treatment.