Non-stop menstruation is related to endocrine disorders, endometrial lesions, and systemic diseases. The causes include: 1. prolonged and incessant menstruation is considered to be endocrine disorder, which is common in perimenopausal functional uterine bleeding, where the ovarian function tends to decline, leading to hormonal disorders. endocrine disorders in fertile women require active treatment by monitoring female hormone 6. 2. submucosal fibroids and large endometrial polyps can affect the normal function of the endometrium, leading to incessant menstruation. 3.When suffering from systemic diseases, it affects the normal coagulation function and leads to long duration of menstruation, such as thrombocytopenic diseases, coagulation dysfunction caused by liver cirrhosis, etc. Whatever the cause of long menstrual periods, they may lead to anemia and should be seen promptly.