Postpartum hair loss usually starts from 4 months after delivery, and can last until 6-9 months after delivery, or even until about 15 months after delivery. Postpartum hair loss is a common phenomenon after childbirth, mainly due to the unstable stage of hormone levels and the recovery stage of endocrine after childbirth. Generally from 4 months after delivery, there is no need to worry too much at this time, most can slowly recover. During this period, we should keep a happy mood, eat a reasonable diet, eat more protein-rich food and avoid excessive consumption of spicy and stimulating food. Most people will stop losing their hair 6-9 months after giving birth, and a few people may maintain it until about 15 months. If hair loss persists beyond the normal time period, you need to visit a hospital gynecology or cosmetic surgery department to rule out pathological hair loss and take appropriate treatment. It is recommended that the public keep a rational perspective on postpartum hair loss, do not be overly anxious, treat this matter with a normal mind, it will gradually return to normal.