Whether the kidney injury caused by hemorrhage can be recovered or not depends on the degree of injury. Generally, the lesser degree of injury can be recovered by active rehydration treatment; the more serious injury can not be recovered even though it is treated actively and effectively. 1. Mild degree: the lack of effective circulating blood volume in the body caused by hemorrhage can lead to insufficient renal perfusion and acute prerenal kidney injury, and the injury is generally not serious. It is necessary to give timely rehydration and blood replenishment treatment and pay attention to rest, so that the kidneys can recover slowly. 2. More serious: patients with acute renal failure after hemorrhage, manifested as oliguria, anuria, with hyperkalemia, severe acidosis and so on. General simple treatment such as rehydration and blood transfusion can not achieve the recovery of renal injury, if necessary, hemodialysis is feasible to remove toxins, maintain the stability of the internal environment and promote the recovery of renal function, but it may also be a long-term legacy of elevated blood creatinine. Regardless of the degree of kidney injury, usually pay more attention to rest, avoid overwork, maintain a good mood, avoid spicy and greasy food on the diet, and be careful with nephrotoxic drugs. It is recommended that the patient timely to the regular hospital medical treatment, follow the doctor’s instructions for treatment and conditioning.