The causes of dry stools are as follows: 1, the consumption of spicy and stimulating food: leading to dryness and heat in the intestines, lack of fluid; 2, lack of Qi and blood: not able to moisten the intestines, resulting in dry stools; 3, emotional stimulation: liver depression leads to liver wood grams spleen earth, so it will also lead to the normal operation of the stool, can not be discharged in a normal and timely manner, and lead to dry stools. Western medicine believes that due to sedentary exercise less, resulting in the abdominal cavity of the pelvic muscles including gastrointestinal muscles, gastrointestinal smooth muscle peristalsis slowed down, food in the large intestine, the intestines stay too long, too much water absorption, resulting in dry stools; mental depression of patients prone to dry stools, has lost or weakened intestinal peristaltic reflexes, etc., can lead to constipation. Constipation can have a number of consequences, such as the absorption of toxins. After the emergence of dry stools on the market now there are hemp seed pills, Chinese medicine, such as gua pou and other laxative drugs, as well as diet should nourish Yin and clear heat to laxative, such drugs can be used in large quantities. Such as eating watermelon, lotus seeds, lily, etc., the main purpose is to clear heat and dry dampness.