The long time playing with cell phones in pregnancy is very bad for the health of pregnant women and the normal growth and development of embryos. First of all, in the early stage of pregnancy is a critical period for the differentiation of embryonic cells, which is more likely to be affected by external adverse factors, causing abnormal differentiation of embryonic cells. Secondly, the cervical vertebrae and eyes of pregnant women are also very harmful, as the curvature of the cervical vertebrae is easily affected by the blood circulation in the head, which can easily lead to dizziness, weakness and other discomforts, and also cause visual fatigue, vision loss and dry eyes, pain and other discomforts. Finally, during pregnancy for a long time with cell phones playing games, watching stimulating TV shows or videos, easily cause mood swings in pregnant women, which will have a certain impact on the fetus. So it is not recommended to play cell phones for a long time during pregnancy, normal use of cell phones has no effect. Pregnant women can listen to music, watch TV, increase outdoor activities appropriately and keep their mood relaxed.