1. Old people with constipation should eat more vegetables and fruits with high cellulose content. Vegetables contain more cellulose, such as water bamboo, leek, spinach, celery, loofah and lotus root, while fruits contain more cellulose, such as persimmons, grapes, apricots, pears, apples, bananas and tomatoes. 2. Exercise, such as walking, jogging and turning over frequently. If you do abdominal massage, you can massage from the right lower abdomen clockwise up, left and down, 2 ~ 3 times a day, 10 ~ 20 times each time, which is very effective. Constipation may be a symptom of a disease. It is necessary to treat perianal diseases such as hemorrhoids in time and be alert to colon cancer. 4. The use principle of laxatives is that all kinds of laxatives are used alternately to avoid using strong laxatives. 5. Do not use or use less drugs that are easy to cause constipation, such as codeine, iron, aluminum and calcium. Constipation means that the stool is dry, the amount of excretion is very small, and it is too dry and hard, and the interval between stools is too long, making it difficult to excrete. If it is a normal person, it takes about 24-48 hours for the ingested food to be digested and absorbed to form feces, and it will be regarded as constipation if it exceeds it. Of course, because the ingredients of food are different from the defecation habits of healthy people, there are also great differences. Defecation every 2-3 days is not necessarily constipation. Once every three days or three times a day may be normal. In addition to proper exercise, it will be more effective to treat constipation by doing more conditioning in diet. There are many reasons for constipation, such as old age, malnutrition, pregnancy, colon cancer and so on. Constipation can generally be divided into the following categories: neuropathy caused by nervous system dysfunction. Cause intestinal wall stenosis, difficult to pass stool, and cause constipation. Too much crude fiber in the diet can also cause intestinal wall spasm and constipation.