Guipi decoction is a traditional Chinese medicine prescription, which has the effects of invigorating qi and spleen, nourishing blood and tranquilizing mind, enriching blood and benefiting qi. It is often used to treat some bleeding symptoms, such as bloody stool, hematuria, metrorrhagia and purpura. These bleeding symptoms are usually related to the spleen's inability to control blood. In the theory of traditional Chinese medicine, the spleen is considered as the organ in charge of blood. If the spleen is weak, it will lead to poor blood circulation and bleeding. Guipi decoction can regulate the temper and promote the generation and circulation of blood, so as to improve bleeding symptoms through the functions of invigorating qi and spleen, nourishing blood and calming the nerves. Some symptoms related to spleen deficiency, such as dull complexion, gray lips and nails, dizziness, pale tongue and weak pulse, can also be improved.