Colon dialysis is a kind of health care treatment method, which injects purified warm water (instead of medicine) into anus and colon through a special device, cleans the whole colon and helps the body to excrete feces and harmful substances in the intestine in time and thoroughly. In the whole cleaning process, artificially create a feeling of defecation, soften and dilute the feces in the intestinal cavity, and thoroughly remove the feces and harmful substances stranded in the intestinal tract. Through repeated water injection, supplemented by appropriate abdominal massage, the colon is mechanically expanded and contracted, which is helpful to improve the motor function of colon and rectum and promote the autonomous peristalsis function of colon and rectum. This treatment is safe and effective, with no adverse reaction, no pain and no dependence. In particular, it provides a safe and effective treatment for patients with fecal obstruction complicated with heart and brain diseases.

Colon dialysis is not the only way to treat functional constipation. At present, it is believed that functional constipation is caused by abnormal colon and rectum function, and there is no unified diagnosis and treatment method. Therefore, patients should be instructed as follows: ① Establish good eating habits, such as drinking more water and increasing the intake of high-fiber food. ② Regularity of defecation: Develop the habit of regular defecation. ③ Strengthen exercise: especially strengthen the exercise of abdominal muscles to promote intestinal peristalsis. ④ Appropriate adjuvant drug therapy: Oral administration of intestinal beneficial bacteria (Bifidobacterium triple viable tablets) can regulate intestinal flora. For chronic transit constipation, drugs such as cisapride can be used to promote gastrointestinal peristalsis. ⑤ Avoid abusing laxatives to avoid dependence on laxatives and aggravate constipation. ⑥ Biofeedback therapy: For constipation patients with dysfunction of rectal sphincter and pelvic floor muscle, biofeedback therapy can be used. This method is a kind of training to control body function with mind, including balloon biofeedback method and EMG biofeedback method. Trained patients can improve the clinical symptoms of constipation and change abnormal anorectal dynamic parameters. ⑦ If necessary, consider surgical treatment: such as sclerosing agent injection, colectomy, rectocele repair, rectal fixation, etc. The cause of functional constipation is complex. It is more helpful to treat functional constipation by promoting health knowledge, improving patients' self-care awareness and understanding of constipation, and combining their own illness.