Ripe bananas are usually laxative and laxative, but unripe bananas are not laxative and laxative. 1. The nutritional value of ripe bananas is high, and they are rich in dietary fiber, which can promote gastrointestinal peristalsis, accelerate digestion and relieve constipation. And bananas also contain a variety of vitamins and trace elements, can enhance the body’s ability to resist disease. 2. But unripe bananas contain a lot of ellagic acid, which will make the feces dry and hard, not easy to be discharged, which in turn leads to constipation. In addition, patients with constipation should help improve constipation through proper exercise, eating more vegetables and fruits, and drinking more water as appropriate. If the patient’s constipation symptoms are serious, or continue to see no improvement, it is recommended to go to the regular hospital in a timely manner, after clarifying the cause of the disease, under the guidance of the doctor for targeted treatment.