Pu huang char is a kind of pollen that has the function of activating blood circulation and removing blood stasis, but patients with more bleeding will aggravate the bleeding by activating blood circulation and removing blood stasis. Because Pu huang itself has the effect of activating blood, Pu huang charcoal also retains part of the effect of activating blood, because Chinese medicine believes that more bleeding is caused by blood stasis, using Pu huang charcoal is the most appropriate, both to treat the root, i.e. blood stasis, and to treat the symptoms, i.e. bleeding, so that both the symptoms and the root can be treated.