Urine creatinine 50mmol/d, suggests that the urine creatinine is too high. The normal range of urinary creatinine is 7-18 mmol/d (7000-18000 μmol/d) for adult men and 5.3-16 mmol/d (5300-16000 μmol/d) for adult women. Elevated values are commonly associated with physiologic factors such as eating too much meat, drinking too little water, or after strenuous exercise. Pregnant women can also have elevated urinary creatinine, as well as pathologic factors such as acromegaly, diabetes mellitus, infections, and hypothyroidism. Urinary creatinine is measured together with blood creatinine, which can be used to evaluate the renal concentration and dilution function as well as glomerular filtration function. Patients need to limit the amount of salt in daily life, quit smoking and alcohol, consume food rich in high quality protein, pay attention to rest, avoid exertion, avoid staying up late, and be careful with nephrotoxic drugs (Guanmutong, gentamicin, etc.). If you feel unwell, it is recommended that you go to a regular hospital in time to avoid delaying your condition.