Whether creatinine 98umol/L is higher than normal is related to age. For most young people under 40 years old, it belongs to the normal range but high, so we need to further find out the cause of creatinine elevation, whether there is glomerulonephritis, hypertension, diabetes, etc. usually. The diagnosis can be clarified by checking blood routine, urinary routine, urinary ultrasound, PTH, etc. It can be treated symptomatically by taking oral medications such as Jin Shui Bao, Bai Ling capsule, urinary toxicity clear granules, Hai Kun Ren Xi capsule, calcium hydroxybenzene sulfonate, and vermifuge capsule. Because it belongs to the early stage of the disease, most of the disease can be cured, or remitted. In case of middle-aged and elderly people, especially those older than 60 years old with creatinine 98umol/L, which belongs to elevated, it is necessary to find out whether there is the situation described above, and the usual diet should be low salt, low fat and low protein diet.