In the early and middle stages of chronic renal failure, traditional Chinese medicine is a very important means of treatment, and the use of traditional Chinese medicine through the identification of evidence can often slow down the progression of renal function, improve the symptoms of patients, and improve the quality of life of patients. However, some patients will use their own prescriptions, some of which are self-harvested Chinese herbs to treat, often in large doses for a long time boiled, this is a great risk, firstly, it is easy to cause hyperkalemia, and secondly, some Chinese herbs contain madulic acid, which will cause irreversible tubular damage, and thirdly, the mega-dose taking of single-flavored Chinese herbs itself is prone to cause renal damage. Therefore, we remind all kidney disease patients to listen more to the opinions of Chinese medicine nephropathy professional physicians before treatment to avoid adverse consequences.