Constipation needs to choose what to eat according to the cause to improve the condition. If it is caused by fine diet or insufficient water intake, you can increase the intake of dietary fiber and water appropriately; if it is caused by imbalance of intestinal flora, you can eat bifidobacteria to supplement the beneficial bacteria; and for functional gastrointestinal diseases, you can eat mosapride. 1. Constipation may occur when you often eat fine foods such as refined noodles and pastries, which have little food residue after digestion, or eat dry foods such as potpourri, which have insufficient water. You can eat more vegetables rich in dietary fiber such as celery to replenish water and improve constipation. 2. If constipation is caused by imbalance of gastrointestinal flora, you can take Bifidobacterium bifidum, Bacillus licheniformis, etc. to supplement the beneficial bacteria and speed up the gastrointestinal tract peristalsis. 3. If there is functional gastrointestinal disease, gastrointestinal peristalsis slows down may also appear constipation, you can use mosapride and so on to promote the gastrointestinal tract to push the food residue, help defecation. In addition, metabolic factors, mental factors can also lead to constipation. It is recommended that when constipation occurs, timely medical treatment, targeted treatment. Drugs need to be used under the guidance of a doctor.