Late pregnancy lying around the fetus are moving, if it is transient fetal movement is a normal phenomenon, if it is a long period of frequent fetal movement, it may be due to fetal compression or hypoxia caused by the phenomenon is not normal. 1. transient fetal movement: fetal spontaneous activity in the uterus or external stimulation, there will be transient fetal movement, pregnant women lying on their sides in a state of mild activity, will be stimulating the fetus in the uterus, resulting in frequent transient fetal movement, this is a normal phenomenon. 2. prolonged frequent fetal movement: this is an abnormal phenomenon, this situation should be timely change position, adjust the breathing, can go to the hospital in time to do the relevant examination, may be due to fetal hypoxia in the uterus or pressure caused by the need for further diagnostic examination. Fetal movement abnormalities, it is recommended to go to the hospital in time to do relevant examinations, to avoid affecting the growth and development of the fetus.