After a medication abortion, the ultrasound shows clean, but the patient still has vaginal bleeding. The following four main possibilities are considered: First, the patient has poor uterine regeneration. The patient can be treated with uterine shrinkage or emmenagogue. Secondly, the patient may have a uterine infection. Patients can be treated with antibiotics with additional medication to stop bleeding. Third, there may be a trophoblastic tumor. Patients must have their blood chorionic gonadotropin checked to confirm the diagnosis, and chemotherapy can be chosen after the diagnosis is made. Fourth, other causes of bleeding. For example, patients with cervical lesions, vaginal lesions, endometrial lesions, systemic hematologic diseases or endocrine disorders, etc. In this case, the patient should be selectively examined according to other clinical symptoms and signs, and the diagnosis should be confirmed before symptomatic treatment.