The absence of feeling at 16 weeks of pregnancy is not necessarily fetal arrest, patients do not need to worry too much, mostly due to weak fetal movement, the late appearance of fetal movement, women do not have experience in childbirth, it is recommended to go to the hospital obstetrics department for ultrasound examination to observe whether the fetus exists fetal movement. Common reasons 1, weak fetal movement: because the intensity of each fetal movement is different, some fetuses in the emergence of fetal movement amplitude is small, pregnant women may not feel or did not pay attention to; 2, late fetal movement: usually fetal movement appears in 16-20 weeks, the time of first-time mothers feel the fetal movement may be later, generally in 18-20 weeks; 3, women do not have experience in childbirth: the first delivery of women due to They will not pay attention to the slight fetal movement in the early stage, and will feel the fetal movement only when it is obvious. Measures 1, pregnant women can feel the fetal movement in a quiet environment, which helps to improve the body’s perception ability; 2, you can go directly to the obstetrics department of the hospital for ultrasound examination to observe the fetal movement, which can also accurately determine whether the fetus has fetal arrest. It is recommended that pregnant women regularly go to the obstetrics department of the hospital for pregnancy checkups, not only to keep abreast of the development of the fetus, but also to have an accurate understanding of their own body condition, which is convenient for body conditioning.