The problem of undigested food in the stool is mostly due to the weakness of the spleen and stomach and the deficiency of spleen and kidney yang, etc., and requires appropriate treatment and prescription of medicines. 1. Weakness of the spleen and stomach: the main role of the spleen and stomach is to putrefy (initially digest food and form food waste) water and grains and transform water and grains into qi, blood, and essence; those with weak spleen and stomach cannot completely putrefy and transport water and grains, and then the situation of undigested grains will occur. Treatment mainly focuses on strengthening the spleen and stomach, and the formula can be Ginseng and Atractylodes Macrocephalae, Sijunzi Tang and other additions and subtractions, and commonly used drugs include Atractylodes Macrocephalae, Poria cocos, Chinese yam, ginseng and so on. 2. Spleen and kidney yang deficiency: In spleen and kidney yang deficiency, the spleen is not warmed and the function of transportation and digestion is not normal, so there is a failure of the grain, the treatment mainly focuses on warming and tonifying the spleen and kidneys, and the prescription can be chosen to add or subtract the Four Spirit Pills and the Pill with Parsley and Zipper to make additions and subtractions, and the commonly used medicines include nutmeg, Cornu Cervi Pantotrichum, tonic bone resin, and dried ginger. The above medicines should be used under the guidance of a doctor, and it is recommended that people who are unable to transform their grain should consult a professional doctor in time to avoid delays in their condition.