As a traditional Chinese medicine, there is no cut and dried three kinds of people should not eat, but this medicine should be used with caution for pregnant women. Pu huang is sweet in taste and flat in nature, and belongs to the liver and pericardium meridians. It has the efficacy of stopping bleeding, resolving blood stasis and clearing gonorrhea, so when there is vomiting of blood, epistaxis, hemoptysis, leakage of menstruation (excessive menstruation or more than a few drops), bleeding from traumatic injuries, dysmenorrhea, tingling in the chest and abdomen, pain in swelling and swelling in the lower abdomen, and blood gonorrhea (the appearance of blood in the urine accompanied by a painful sensation) and astringent pain, it can be used to improve or cure the disease. There is no authority to suggest that three people should not eat Pu Huang, but it should be noted that pregnant women should be careful to use Pu Huang. In addition, Chinese herbs should be used under the guidance of the doctor’s diagnosis, do not blindly use their own medicine, so as not to cause adverse consequences.