Patients with nephritis can and saffron, nephritis patients should be low salt, low fat, high quality low protein diet. Low salt is to avoid eating pickled foods and foods that taste salty, low fat is to avoid eating cholesterol and fat-rich foods. High quality protein is high biologically effective protein, mainly animal protein, avoiding plant protein-rich foods, which contain low amounts of essential amino acids and metabolic waste, increasing the burden on the kidneys. Saffron water is low in protein and fat, so it can be consumed. Saffron Chinese medicine has the effect of cooling the blood, detoxifying and activating blood circulation to remove blood stasis. However, patients with nephritis who have heavy edema should limit water intake, have nephritis should actively control blood pressure, reduce proteinuria, once renal failure occurs, we should delay the progression of kidney function and actively treat various complications of chronic renal failure to improve survival and quality of life. The end stage of chronic renal failure is the uremic phase. Once the symptoms of uremia appear, hemodialysis and peritoneal dialysis should be performed, and various complications of uremia should be actively treated, blood pressure should be controlled, anemia should be corrected, and low calcium, high phosphorus and hyperparathyroidism should be corrected.