Postpartum hemorrhage includes three periods after delivery of the fetus referring to before delivery of the placenta, after delivery of the placenta to 2 hours after delivery, and 2 hours to 24 hours after delivery. Postpartum hemorrhage is one of the main causes of maternal death in China. Once the hemorrhage occurs, the prognosis is poor, and a large amount of blood can be lost rapidly in a short time, which can lead to shock and even death in serious cases. In case of prolonged shock, serious complications may exist even if the patient is rescued in time. What are the sequelae of postpartum hemorrhage? Sheen’s syndrome is a sequelae unique to pregnant women with postpartum hemorrhage. Sheen syndrome is a disease caused by severe hypoxia in the brain due to postpartum hemorrhage with prolonged hypovolemic shock, resulting in damage to the anterior pituitary gland and loss of its function, resulting in reduced or absent hormone secretion. Since the pituitary gland mainly secretes growth hormone, thyroid stimulating hormone, prolactin, gonadotropin, adrenocorticotropic hormone, and systolic hormone, the sequelae of pituitary gland damage cover reproduction, metabolism, growth, etc. The following symptoms can occur: 1) reduced lactation or even no lactation due to the reduction of lactogenic hormones, which makes breastfeeding impossible; 2) reduced gonadotropins and reduced ovarian function, which leads to amenorrhea and decreased libido in women; 3) reduced thyroid hormones, which makes people easily tired and unresponsive. Therefore, mothers who have experienced postpartum hemorrhage and coma shock, such as postpartum hemorrhage weakness, dizziness, emaciation and lack of milk, need to be alert to postpartum hemorrhage sequelae of Sheen syndrome, and should promptly consult a doctor to seek the cause of the disease. Most importantly, it is still important to prevent the occurrence of postpartum hemorrhage.