A child is not delivered through the anus, but through the vagina, or through surgery, by cutting the abdominal wall and the uterus. Usually the anus is the end organ of the digestive tract and is the pathway for fecal excretion, not the birth canal, and there are two main delivery methods: normal delivery and cesarean delivery. Natural birth: this process is vaginal birth, from the beginning of regular contractions to the delivery of the fetus and placenta, clinically divided into the following three stages of labor: 1, the first stage of labor (cervical opening period): under the stimulation of regular contractions, the fetal previa gradually descends, and after the opening of the uterus to 4-6 cm after the rapid descent, until it reaches the vulva and vaginal opening. The fetal membranes rupture naturally when the first part of the fetus is articulated and the opening of the uterus is close to full opening; 2. 2nd stage of labor (fetal delivery period): after the rupture of the membranes, the fetal head gradually descends and presses on the pelvic floor tissues, and the fetal head is delivered when the biparietal diameter of the fetal head crosses the pelvic outlet and no longer retracts between contractions, and then the fetal head is reset and externally rotated, and then the fetal body is delivered; 3. 3rd stage of labor (placenta delivery period): after the fetus is delivered, the placenta and the uterine wall occur After the fetus is delivered, the placenta is dislocated from the uterine wall, and the uterus continues to contract so that the placenta is completely detached and delivered. Cesarean delivery: When there are abnormal factors in the course of pregnancy, such as abnormal fetal position, cephalopelvic disproportion, gestational hypertension syndrome, placenta praevia, etc., cesarean delivery can be chosen when normal delivery is considered impossible. After anesthesia is administered to the mother at the end of preoperative preparation, the doctor makes a transverse or longitudinal incision in the lower abdomen to enter the abdominal cavity, enlarges the uterine incision to 15 cm layer by layer, and then removes the fetus from the uterus, and finally clears the uterus and sutures the uterus and the abdominal layers of skin tissue.