My father is 64 years old and has been constipated for a long time after his stroke. When he became constipated, I went to the pharmacy to buy rhubarb, senna leaves, or fruit guide tablets for him to take. These methods were effective at first, but later they were ineffective, and the more I took them, the worse the constipation became, and my father suffered a lot. Then I sent my father to an old Chinese doctor for treatment, who prescribed only one medicine: Atractylodes macrocephala. This prescription worked very well, and my father took 40 grams once a day for 2 days, and his stool was cleared; after taking it for half a month, his stool remained clear. Comment: The source of constipation is the source of the disease. In the spleen and stomach. The medicine for the spleen and stomach is Atractylodes macrocephala. The herb “seeking truth” that “the spleen bitter wet, anxious to eat bitter to dry, the spleen want to slow, anxious to eat sweet to slow down the, white atractylodes taste bitter and sweet, not only can dry wet real spleen, but also can slow down the spleen to produce fluid, and its nature is slightly warm, take it can strengthen the spleen and eliminate grain, for the spleen the first important medicine.” The spleen and stomach can be tonified, clearing and lowering turbidity, which can promote bowel function, so it is effective to treat constipation with raw Atractylodes macrocephala. With raw atractylodes for constipation, the dose varies, as little as 30 ~ 60 grams, heavy 120 ~ 150 grams, decoction, once a day; stool dry, it is appropriate to add 15 grams of raw earth to nourish the; if the stool is difficult and not dry or thin and soft, accompanied by the hands and feet are not warm, and should add cinnamon, dry ginger 3 ~ 6 grams of each warm pass, then not only pass the stool and stool cool.