Cystatin C1.16mg/L does not require treatment for the time being. The reference value of serum cystatin C in adults is 0.6-2.5mg/L, which is an indicator of glomerular filtration function. Cystatin C is a non-glycosylated basic protein that is expressed by all kinds of nucleated cells, with a constant daily secretion, and can freely pass through the glomerular filtration membrane. Most of it is taken up and broken down by epithelial cells in the proximal tubule and does not return to the blood, and only a trace amount is excreted in the urine. Therefore, this indicator is one of the indicators of impaired renal function, as well as blood creatinine and urea nitrogen, and the sensitivity to the early impairment of renal function is better than the previous two. If cystatin C is within the normal range, it is still recommended to go to a regular hospital for consultation, and the doctor will give the diagnosis and treatment advice after comprehensive evaluation through the underlying diseases and clinical manifestations.