Vaginal bleeding after using sea buckthorn seed oil suppositories is an abnormal phenomenon. The common cause is local inflammation of the cervix, such as polyps, which can lead to contact bleeding. In addition, local cancer of the cervix may also cause contact bleeding, and damage to the vaginal mucosa may also cause bleeding. It is recommended to go to the hospital in time to check the area causing bleeding and then give appropriate treatment. It is very important for women to have regular cervical cancer screening. In this case, cervical cancer screening can also be done to rule out the possibility of localized cervical cancer, and the corresponding treatment will be given according to the test results. It is also important to keep the nails short when inserting the medicine to avoid damage to the mucous membrane tissue due to long nails, which may lead to bleeding, and to keep the vulva locally clean during the medication period.