When a pregnant woman is angry, strong mood swings may cause irregular uterine contractions, leading to spasms in the smooth muscle of the uterus, which may cause pain in the small abdomen. If a pregnant woman has strong mood swings such as anger or sadness for a long time or is depressed for a long time, it will not only trigger her own discomfort, but may also affect the personality of the fetus, causing the child to be born introverted, sensitive, suspicious and other personalities. Therefore, during pregnancy, it is recommended that pregnant women maintain a calm state of mind and avoid strong mood swings. In addition, the heart activity of women who are often angry and irritated during pregnancy will be affected, which will lead to unstable lung capacity, and the bleeding volume during each heart contraction will also tend to be unstable, and the fetus will not be able to get oxygen and nutrients from the pregnant woman’s blood regularly, which may affect the intellectual development of the fetus, and in serious cases, there is even a risk of miscarriage. Therefore, in daily life, pregnant women can relax by improving the quality of sleep, listening to music and moderate exercise in order to adjust their mind and maintain emotional stability. If the abdominal pain caused by anger or rage cannot be relieved by rest, pregnant women need to go to the hospital in time to get the necessary treatment under the guidance of professional doctors.