Mid-pregnancy fetal fingers can be flexed and extended. Generally the fetus is in a state of curling up during its development in the uterus, and the fetal hand posture often belongs to the clenched fist state, including our newborn babies are like this. In mid-pregnancy, the fetus is already formed and well developed, and there is more space to move around in the uterus, so the fingers can be flexed and extended. To the late pregnancy, the fetus in the uterus to exert not open, often hand flexion state, that is, the fetal hand is a clenched fist state. During pregnancy, you should maintain an optimistic mindset, strengthen nutrition, do regular ultrasound examinations, pay attention to fetal development, as long as the indicators of the obstetric examination are normal, there is no need to be overly nervous.