Fetal movement usually occurs between 18-20 weeks of pregnancy, due to individual differences may be early or late, 17 weeks has not appeared fetal movement, is generally a normal phenomenon, can be observed, do not have to worry too much, usually without special treatment. At the same time, the first time pregnant women may not be clear about the feeling of fetal movement, can not accurately feel the fetal movement, for the slight fetal movement can not be detected in a timely manner, so as to feel the fetal movement; if the pregnant woman is obese, the abdominal skin fat is thicker, it may also make the fetal movement feeling is not obvious. Pregnant women should pay attention to on-time examination, if the results are normal, with the increase of pregnancy weeks, fetal movement will become more and more clear and obvious, usually can be clearly felt. However, if the embryo itself has defects, or in the process of development, nutrition and oxygen supply is insufficient, or even pregnant women’s bad mood, overwork, etc. may affect the development of the fetus, appear to stop development, resulting in no fetal movement. If there is still no obvious fetal movement beyond 20 weeks, it is necessary to pay attention to it and conduct timely obstetric examination to determine the condition of the fetus in the uterus through ultrasound, and take appropriate treatment measures at an early date.