Slightly high blood creatinine can be recovered in some cases such as acute kidney injury or physiological factors such as due to strenuous exercise. If it is caused by chronic renal impairment, it is usually difficult to recover. Different causes of elevated blood creatinine will lead to different recovery situations. The slight increase of blood creatinine caused by acute renal impairment is possible to recover completely after treatment. In addition, physiological factors such as strenuous exercise, eating a lot of meat and so on, after paying attention to rest, light diet can also generally return to normal. If the blood creatinine is increased due to chronic renal impairment, or acute renal impairment is transformed into chronic renal impairment, even after treatment, creatinine value is difficult to return to normal level. When there is a slight increase in blood creatinine, you should go to the regular hospital in time to find out the cause and follow the doctor’s advice.