After the baby is in the pelvis at 36 weeks, it will take about 2 to 4 weeks if it is a primigravida; if it is a menstruating woman, its pelvic time will be later, and the specific time needs to be judged according to the situation. When the head of the fetus is in the pelvis, pregnant women can obviously feel the abdominal bulge downward, and there may be bouts of pain and crushing sensation in the abdomen, but the fetus is likely to compress the bladder when it descends, and frequent urination symptoms will occur. It is recommended that when the head of the fetus is in the pelvis, regular labor checkups, usually 1 week, in order to clarify the situation of the fetus in the uterus and the physical condition of the pregnant woman, and the pregnant woman needs to pay attention to the number of fetal movements, once abnormal fetal movements, need to consult a doctor to clarify the cause. At the same time, it should be noted that when the baby 36 weeks into the basin, in the next period of time, must be closely observed whether there are symptoms related to labor, such as irregular contractions, see red, etc., if it appears, should consult a doctor in a timely manner.