If there is still a little bit of blood 10 days after hysteroscopic surgery, it may be caused by the endometrium not completely healing, or infection of the endometrium. 1. The endometrium is not completely healed: If the endometrium recovers slowly due to external stimuli or the patient’s weak physical condition, there may still be a small amount of bleeding 10 days after the operation. 2. Infection of endometrium: If there is vaginitis before the surgery or upstream infection by pathogens after the surgery, it may cause the endometrium to be difficult to recover on its own, and there is more than bleeding, which needs anti-infection treatment. After the hysteroscopic surgery, regular review is needed. If the bleeding is prolonged or accompanied by other discomforts, it is recommended to go to the hospital in time, and carry out standardized treatment under the guidance of the doctor to promote the alleviation of the condition.