Women have postpartum depression mainly due to the following aspects: First, postpartum hormone level changes caused by women in the postpartum lactin level is relatively high, the level of estrogen is relatively low, the decline in the level of estrogen will lead to anxiety, depression, emotional instability and other emotional changes, which is caused by postpartum depression is a very important reason. Second, the physiological changes in the female body, women after the birth of a large number of damage to the blood and Yin, from the perspective of traditional Chinese medicine, qi and blood deficiency will lead to the mind and spirit do not nourish and easy to cause emotional changes. Third, family factors, women and their families before the birth of a relatively harmonious relationship, after the birth of their own emotions, physiological changes and feeding the child will encounter problems, it is easy to conflict with their families, and these conflicts can not be adjusted through the work or to find someone to vent it is easy to cause postpartum depression.