Whether high blood creatinine can recover on its own depends on its value. High blood creatinine means excessive toxins are accumulated in the body, and many reasons such as renal fibrosis and glomerulosclerosis can cause this condition. If it is slightly high, it can be restored to normal by adjusting the diet. However, it is less likely to recover on its own, so you need to go to the hospital for further examination and active treatment to repair the intrinsic cells of the kidney. As long as the pathological damage is resolved, the index will drop and the condition can be controlled. High blood creatinine should also pay attention to the correct diet, timely quit smoking and alcohol, do not eat food with high purine content, like peas, fish and shrimp food, animal offal, seafood food, purine content are very high, easy to make the symptoms more serious, should eat more eggs, vegetables, fresh fruit, drink more water, can help improve the problem of high blood creatinine.