Postpartum depression typically occurs four weeks after delivery and may or may not be accompanied by psychotic symptoms. The clinical prevalence of depressive episodes in women weeks and months after delivery is 3%-6%, and in clinical studies it has been found that some patients with postpartum depression can last for more than 6 months or even up to several years. For postpartum depression, especially in the first week after delivery, the chances of postpartum depression appearing are as high as 50-75%, while 10%-15% of women can end up with postpartum depressive disorder. Postpartum depression is the most common psychiatric disorder after childbirth and has a very negative impact on the mother, family and baby. Once postpartum depression is clinically diagnosed, systematic and standardized antidepressant treatment should be given to prevent the condition from worsening and affecting the health of the mother and baby.