There are several situations: 1, drink too little water, many people are particularly busy, many times can not care about drinking water, the stool will become very dry, there will be lumpy stool; 2, too little exercise, especially white-collar workers, sitting for a long time at work, very little activity, even on holidays rarely do exercise, the intestinal muscles will become very loose, intestinal peristaltic ability will become poor, there will be defecation difficulties, a large number of A large amount of stool accumulation in the intestines, where the water will continue to be absorbed by the intestines, so the stool will be particularly dry, there will be lumpy stool; 3, bad bowel habits, many people are busy because of the intention to stool also held back, the rectal nerve reaction ability will be reduced over time, will also lead to dry stool lumpy stool; 4, gastrointestinal diseases, such as gastritis, gastric ulcer, enteritis, duodenal ulcer, all Will affect the gastrointestinal function, gastrointestinal peristalsis will be abnormal, it may lead to constipation, stool will accumulate in the intestine, the water is constantly absorbed by the intestine will become dry, lumpy stool.