Uterine arteriovenous fistulas are mainly due to a connection between the uterine arteries and veins and the formation of a breach in the middle that allows blood from the arteries to enter the veins and blood from the veins to enter the arteries. However, because the arterial pressure is greater than the venous, the blood from the artery enters the vein and the uterine blood supply is reduced. Most commonly, local inflammation leads to rupture of the blood vessels, and then the exudate from the surrounding inflammation leads to adhesions in the arteries and veins, which can lead to the formation of leaky channels in the arteries and veins in the long run. Treatment is needed in a timely manner, mainly interventional and surgical treatment, depending on the specific condition. It is necessary to pay attention to rest, observe any discomfort and avoid strenuous exercise. After surgery, bed rest and a light diet should be observed, and the anastomosis should be reviewed regularly.