Rhubarb, Psoralea and Parsley Soup is a traditional Chinese medicine prescription, which is mainly used to treat constipation caused by cold stagnation in the interior, and should not be blindly used for the treatment of people with unformed stools. It is also known as Rhubarb, Radix et Rhizoma Piperitiae and Radix et Rhizoma Piperitiae Soup, which is composed of Rhubarb, Radix et Rhizoma Piperitiae and Radix et Rhizoma Piperitiae, with the effect of warming and dispersing the cold in the interior and relieving the pain and the bowel movements, and is mainly used in the treatment of constipation caused by cold stagnation in the interior. For those who have unformed stools, it is mainly considered as loose stools (thin and unformed feces), which is mostly related to the weakness of the spleen and stomach or the deficiency of kidney yang (lack of yang qi in the kidneys), and its treatment should be based on the patient’s own specific symptomatic manifestations under the guidance of the physician’s diagnosis and guidance, and should not be used blindly in rhubarb, epiphyllum, and spicule soup.