Women during pregnancy are more prone to mood swings due to changes in hormone levels in the body. So what are the main adverse effects that may be caused by anger during pregnancy? First, occasional anger is a very normal emotional response, the impact on the health of mother and child is not very obvious; second, pregnant women often angry during pregnancy will lead to the production of some harmful chemicals in the body, these chemicals can enter the baby’s body through the blood circulation of the placenta, causing adverse effects on the baby’s development, minor may cause symptoms of pre-eclampsia, serious may lead to miscarriage In some cases, this may lead to miscarriage and premature birth; third, frequent or too frequent anger may also lead to delayed development of the baby in the uterus; fourth, mothers who are often angry during pregnancy are also prone to emotional and social adaptation abnormalities in their babies.