A small amount of bleeding from drospirenone tablets may be due to withdrawal bleeding or menstrual flow caused by the medication, or it may be due to preterm miscarriage or unsuccessful birth control. It is also possible that the bleeding is not related to the drug but to the patient’s endometriosis or cervical lesions, in which case the patient should go to the hospital in time for ultrasound, blood tests and other examinations to clarify the cause and then treat the cause. 1. Withdrawal bleeding: If you miss the dose or stop taking it at will during the intake of drospirenone tablets, withdrawal bleeding may occur, which is related to the sudden drop of hormone levels in the body. If the amount of bleeding is small, attention should be paid to rest and avoid activities. If the amount of bleeding is large, hemostatic drugs can be taken under the guidance of a doctor. 2. menstrual flow: If the patient is using drospirenone tablets to regulate menstruation, vaginal bleeding, i.e. menstrual flow, may occur after stopping the medication, which is normal and does not need to be dealt with. 3. pre-eclampsia abortion: If the patient has pre-eclampsia abortion itself and uses drospirenone for fetal preservation treatment, vaginal bleeding may occur even during the medication if the patient has vaginal bleeding itself. Vaginal bleeding may occur because it is impossible to take the medicine to stop the bleeding immediately and the treatment needs a process. In addition, if the birth control is unsuccessful, a small amount of vaginal bleeding may also occur. 4. Endometrial lesions: If the patient has endometritis or endometriosis, it can lead to a small amount of vaginal bleeding, unrelated to the medication. It is recommended to go to the hospital in time for ultrasound examination to clarify the cause and then treat the symptoms. In case of endometriosis, anti-inflammatory treatment such as cefixime and metronidazole can be administered under the guidance of a doctor. Patients with endometriosis can take indomethacin, medications such as medroxyprogesterone acetate and danazol under doctor’s guidance for symptomatic treatment. 5. Cervical lesions: If patients have cervicitis, they may show symptoms such as increased vaginal discharge, vulvar itching and burning sensation, small amount of vaginal bleeding and bleeding after sexual intercourse, etc. The small amount of vaginal bleeding caused by this condition is not related to the consumption of detrofloxacin tablets. The pathogen should be clarified and treated clinically.