Bleeding after using Yunnan Baiyao may be related to the short time of using the medicine and abnormal blood clotting function. If the wound is small, the bleeding can be stopped on its own. Yunnan Baiyao has the function of removing blood stasis, stopping bleeding and relieving pain, etc. The drug stops bleeding by enhancing its own coagulation factors to play the role of stopping bleeding, which requires a certain period of time, and the bleeding is not stopping, which may be caused by the short period of time of using the drug. On the other hand, since Yunnan Baiyao’s hemostatic effect has a clear relationship with platelet aggregation, thrombin activation, etc., so if there are self-coagulation anomalies such as hemophilia, platelet apathy, etc., bleeding more than the situation may occur. It is recommended to go to the hospital promptly if bleeding does not stop after injury.