Bleeding suddenly after 2 days of hysteroscopic polyp removal is usually due to the body’s elimination of residual stasis and secretions, and prolonged or heavy bleeding is not normal. Intermittent bleeding after endometrial polyp removal by hysteroscopy is normal. This is because diagnostic curettage is needed at the same time as polyp removal to rule out other pathologies in the endometrium, which can create trauma in the uterine cavity and cause damage to the corresponding tissues. In most patients, as the uterus contracts, the blood sinus closes and the bleeding gradually returns to normal after 3 to 5 days. However, if the patient bleeds for a long time after the surgery and the bleeding is large, it is an abnormal phenomenon, and it is recommended to go to the hospital in time to stop the bleeding treatment, and at the same time to prevent infection. It is recommended that if the patient still has persistent bleeding or abnormal bleeding one week after the operation, he should go to the hospital in time to get a clear explanation of the cause of the abnormal bleeding and follow the doctor’s instructions for treatment.