Chronic functional constipation generally refers to the symptoms of long-term constipation caused by non-pathological factors, usually related to lifestyle, dietary factors, emotional factors, etc. It is a functional constipation. It is a functional constipation that is characterized by straining to defecate, dry stools, incomplete defecation, a feeling of anal obstruction during defecation or the need to use manipulation for assistance, and less than 3 bowel movements per week. Chronic functional constipation can be diagnosed if two or more of these symptoms have been present continuously or intermittently for at least three months in the past year, and if the constipation is not caused by irritable bowel syndrome, no loose stools, and no intestinal or systemic organic diseases or medications have been ruled out. Patients with chronic functional constipation are advised to make appropriate adjustments to their lifestyle, emotions and dietary habits, to drink more water, to eat more vegetables and fruits and coarse fiber foods, and to develop the habit of regular bowel movements. For patients with severe constipation, they should go to the hospital for consultation and treatment, and if necessary, some laxative medications can be used to relieve the symptoms.