Bleeding even after 15 days of hysteroscopic polyp surgery may be caused by menstruation, endocrine disorders, infections and other reasons. 1. Menstruation: If menstruation occurs within 15 days after hysteroscopic polyp surgery, it may lead to the situation that there is still blood 15 days after surgery. This is a normal physiological phenomenon and requires no treatment. 2. Endocrine disorders: During the operation, women are too anxious and nervous, which may lead to hormonal imbalance in the body and the situation of bleeding 15 days after the operation. 3. Infection: If you do not pay attention to local hygiene, or the body’s poor resistance to invasion of pathogenic bacteria, may lead to trauma infection, difficult to heal and bleeding 15 days after the operation, and more often accompanied by abnormal vaginal discharge and other symptoms. If the patient still bleeds 15 days after the hysteroscopic polyp surgery, it is recommended to consult a doctor in time, under the guidance of the doctor, improve the relevant examination, clarify the cause of the disease, and target treatment.