After pregnancy, because of changes in hormone levels in the body, pregnant women may experience psychological and emotional changes, such as irritability, crying, and anxiety. Some of them may also experience sleep disorders, memory loss and other physical changes. Most of them appear in the 6th-10th weeks of pregnancy and will be gradually relieved with the progress of pregnancy week, which is normal. If the above psychological changes increase in degree, such as excessive anger, anxiety, tension, irritability, crying is difficult to stop, sleep disorders gradually increase, if it lasts for a long time, you need to be alert to the occurrence of depression; if pregnant women appear personality changes, impatience, anxiety, irritability, sweating, panic and other signs of accelerated metabolism, you need to be alert to hyperthyroidism (hyperthyroidism), you need to conduct a thyroid function test. Depression needs to be seen and treated by a psychiatrist. The effect of depression on the fetus has not been determined. If hyperthyroidism is the cause, milder or treated hyperthyroidism has little effect on pregnancy, while more severe or uncontrolled hyperthyroidism has an increased risk of miscarriage, preterm birth, stillbirth, low birth weight, hypertension during pregnancy, thyroid crisis, and congestive heart failure in the pregnant mother. In conclusion, anger during pregnancy is in most cases a normal physiological change during pregnancy and is not significantly harmful. Pregnant women should be aware of the physical and psychological changes that occur after pregnancy and deal with them properly. If emotional changes such as anger are severe and prolonged, or even if other psychological changes occur, depression or hyperthyroidism cannot be ruled out, prompt medical attention is needed to identify and treat the cause to avoid increased risk of fetal miscarriage, premature birth, stillbirth and related diseases in the pregnant woman.