Constipation is a common clinical condition, most commonly seen in elderly patients and female patients. If the stool stays in the intestine for too long, greater than a week, the stool in the intestine tends to darken and solve black stools. For the treatment of constipation, the first thing you need to do is to make adjustments in your diet, drink more water, eat more vegetables and fruits, such as apples, bananas, kiwis, cucumbers, etc. Eating more green vegetables will increase the dietary fiber in your food and facilitate the discharge of stool. In addition to dietary regulation, you can also take oral laxative drugs, commonly used drugs are lactulose, hemp pills. If the effect of drug treatment is not good, you can perform a cleansing enema, which is conducive to the discharge of stool.