Elevated blood creatinine usually returns to normal after exercise. During exercise, muscle metabolism produces creatinine, which can lead to an increase in blood creatinine. This is a normal physiological phenomenon, and blood creatinine can usually return to normal after reducing exercise or resting. In daily life, you should exercise properly to strengthen your body. It should be noted that if the patient’s creatinine has not returned to normal, it may be due to pathological reasons, including nephritis, nephrotic syndrome, etc., and need timely treatment. Patients with elevated blood creatinine need to go to the hospital in time, and clarify the cause under the guidance of professional physicians, if it is caused by pathological factors, timely treatment is needed.