Approximately 45% of women experience hair loss to varying degrees within 7 months of delivery, due to the excess production of estrogen during pregnancy. According to statistics, about 90% of the hair in the middle and second trimesters of pregnancy enters the anagen phase, which means that the number of “overdue” hair increases, and the hair looks shiny and dense at this time. After the birth of the baby, the mother’s body begins to return to its original state, the body began to produce less estrogen, this balance restored, it takes about 2 to 7 months. During this time, the resting hair follicles soon increase in number and the hair that is “overdue”, i.e., the hair that should have been shed during pregnancy but was not shed under normal circumstances, is often shed within 2 to 7 months after delivery. Because the amount of hair loss is much more than the amount of growth, some mothers may feel fear, anxiety, depression, and even mental breakdown, and then lead to psychogenic hair loss. As you can see, postpartum hair loss is an extremely common condition, occurring after the birth of one child, or after the birth of another child without hair loss, and then suddenly losing a lot of hair after having another child. Postpartum hair loss is identified by the form and timing of hair loss, which is similar in form to male pattern baldness, i.e. hair loss at the hairline, receding hair at the temples, and thinning of hair throughout the head. Postpartum hair loss is a temporary phenomenon, and when new hair grows, the hair loss will not heal itself. Women who suffer from postpartum hair loss should stay calm, eat reasonably, wash their hair regularly, and massage their scalp to promote blood circulation in the scalp, which is conducive to hair growth.