Bleeding on the second day of vaginal insertion is often caused by a break in the mucosal tissue. The most common reason is that the medication itself is hard, and the nails are too long and not well trimmed, causing contact bleeding from the vaginal or cervical mucosa. It is advisable to stop the medication and go to the hospital for gynecological examination, mainly to understand the site of bleeding. If cervical cancer screening has not been done in the past, it is recommended to do cervical cancer screening. If the bleeding is not heavy, the medication can be continued clinically. If the bleeding is heavy, it is recommended to stop the bleeding first and then continue the medication after the bleeding stops. And make sure to cut your nails short before using the medication to avoid damaging the vaginal mucosa and cervical mucosa.