The colon tract is the largest reservoir of toxins in the human body, and is also an important channel for the elimination of toxins from the body. Medical research has proved that: the intestines of uremic patients contain 70g of urea nitrogen, 2.9g of creatinine, 2.5g of uric acid and 2.0g of phosphorus per day, which is significantly more than the content in urine. It is a new way of clinical treatment. Treatment methods: 1.Whole colon cleansing; 2.Whole colon dialysis; 3.Whole colon herbal enema. The principle of action and advantages: 1, through the whole colon cleansing, can remove the toxins retained in the intestine and prevent their reabsorption; 2, using the vast dialysis area of intestinal mucosa and its biological semi-permeable membrane characteristics and the principle of diffusion and osmosis, through the whole colon filled with dialysis fluid, can effectively remove the body’s metabolic waste; 3, if the combination of Chinese and Western medicine treatment methods, and then into the colon of Chinese medicine liquid, through the colon fully absorbed, so as to effectively regulate the body absorption, so as to effectively regulate the internal environment of the organism and better remove toxins; 4, non-invasive, safe, effective and low cost. Suitable patients: 1. early and middle stage renal failure patients who do not need hemodialysis or abdominal dialysis yet; 2. renal failure patients whose physical and economic conditions can hardly afford hemodialysis or abdominal dialysis; 3. pediatric renal failure patients who are less adaptable to hemodialysis or abdominal dialysis; 4. peritoneal infection and fibrosis caused by abdominal dialysis, and patients with poor effect of abdominal dialysis; 5. can remove medium molecule substances from patients with advanced renal failure, improve the quality of hemodialysis, and reduce the number of hemodialysis. The number of times.