Menstruation after surgery usually has no significant effect on the patient. Surgery involves a certain amount of blood loss, and menstruation after surgery may cause anemia. But in fact, menstrual bleeding is about 20 to 60 ml, which usually does not cause anemia. However, if you lose a lot of blood during surgery or have a heavy menstrual period, it may cause anemia. If you have menstruation soon after the surgery, you can eat some iron-rich foods, such as animal liver, lean meat, etc., pay attention to nutrition and improve the body resistance. If there are symptoms of anemia such as pallor and fatigue, it is recommended to consult a doctor in time, complete the blood routine and other relevant examinations to clarify whether the anemia and the degree of anemia, and follow the doctor’s instructions to carry out symptomatic treatment.