Fetal kicking in late pregnancy may be caused by the health of the fetus, the size of the pregnant woman, the poor condition of the pregnant woman, and intrauterine distress of the fetus. 1. Fetal health: late pregnancy fetus kicking may be a healthy development of the fetus in the uterus, the strength of the fetal movement is relatively large, the number of normal and regular fetal movement indicates that the development of the fetus in the uterus is in good condition. 2. Pregnant women’s body type: pregnant women’s body type is thin, the abdominal wall of the fat tissue is relatively small, the fetus in the uterus after the activities of the perception of fetal movement is more sensitive, will feel the fetus kicking strong. 3. Poor state of pregnant women: excessive hunger during pregnancy, eating too much, emotional, gestational diabetes, thyroid function abnormalities, etc., affecting the physical health of pregnant women, poor state of the case, the fetus is restless, fetal movement will be more energetic. 4. Fetal intrauterine distress: late pregnancy fetal movement is more frequent and fetal strength, fetal movement irregularity should be considered is fetal intrauterine distress, such as the umbilical cord around the neck, umbilical cord torsion, placenta function abnormalities and other causes. There are more reasons why the fetus kicks vigorously in late pregnancy, accompanied by other abnormalities, it is recommended to consult a doctor in time for examination.