Ancient medical books, human feces is a traditional Chinese medicine, but not directly into the medicine, need to go through the traditional Chinese medicine concoction can only be used in medicine, but modern has not been used for medicinal purposes. According to “Bie Lu”, human feces is bitter, cold and non-toxic in nature, and is used for treating the great heat and detoxification of various poisons. Dried feces is crushed into powder and boiled in boiling water to remove the foam. Beans Garden Records” called “Yuan Shui”, “Yellow Dragon Soup”. The empty tiles were sealed and placed in a dung pit, and after years of aging, the dung juice would penetrate into the tiles, which was very black and bitter, and was used to treat dying people with plague diseases. Widely used is called “human in yellow”, the licorice in a bamboo tube, sealed, sunk into the dung tank in winter, spring take out, hanging in the air drying place, break open the bamboo tube to take out the licorice, sun-dried with. Human feces into medicine, ancient times, but nowadays has not been used as medicine.