What is the reason for the hard shit?

Dry stools are caused by excessive heat or constipation. Drink plenty of water, eat more fruits and vegetables, supplement vitamins. You can also eat more coarse grains such as corn, soybeans, sweet potatoes, etc. to help digestion and absorption and defecation smoothly. When defecation difficulties occur, you can follow the doctor's advice to use drugs to alleviate them.