Prunes have a certain laxative effect, mild constipation of about 3-5 people per day to relieve constipation symptoms, but severe constipation of people eating prunes alone may not be effective. Prunes contain a large amount of fiber, which can promote intestinal peristalsis and improve the symptoms of constipation; at the same time, prunes contain vitamin C, fructose and other substances, which can increase the water in the intestine to soften the role of stool. Mild constipation people can eat 3-5 per day to relieve the symptoms of constipation. However, for severe cases, such as habitual constipation in the elderly and constipation caused by hypothyroidism, it is necessary to combine laxative drugs, such as senna preparations, aloe preparations, etc. In addition, because of the high sugar content of prunes, it is not recommended for diabetic patients to use prunes to avoid blood sugar fluctuations; at the same time, patients after gastrointestinal surgery should not consume prunes; and constipation caused by intestinal organic lesions such as intestinal obstruction, intestinal tumors, etc. should not be consumed, and patients are advised to seek medical advice as soon as possible.