A grainy stool indicates a dry stool, which is a manifestation of constipation, and may be accompanied by difficult, prolonged and laborious defecation. If the problem of one grain of stool occurs, you can improve your diet, drink more water, eat more food containing more fiber, such as green vegetables, coarse grains and other foods, and suggest that patients should exercise more to accelerate the peristaltic movement of the stomach and intestines. If the above methods are not obvious, you can also consume foods that lubricate the intestinal tract such as honey, or you can go to the hospital to configure stool-softening drugs such as sodium docusate tablets, lactulose, polyethylene glycol and probiotics to improve the shape of the stool, basically through the above methods can improve the nature of the stool, and if necessary, you can also perform a colonoscopy to further clarify whether there are organic lesions.