Hemodialysis and hemofiltration are two different dialysis methods, hemofiltration is a bit better than hemodialysis, as follows: 1. Hemodialysis: Hemodialysis mainly refers to hemodialysis, which removes small molecule toxins as well as water from the body; 2. Hemofiltration: Hemofiltration not only removes small molecule toxins, but also has some cleaning effect on medium and large molecule toxins. These two treatments are mainly for patients with uremia. When kidney disease develops to uremia later, due to the serious impairment of kidney function, it is difficult to excrete excess water and metabolic waste in the body through the kidneys, so it is necessary to rely on blood purification treatment. During the treatment process, patients should pay attention to monitor the changes of blood routine, electrolytes, parathyroid hormone and other indicators. In daily life, patients should pay attention to control salt and water intake, and eat less food with high potassium and phosphorus.