Most of the hematomas under the renal peritoneum require a long period of rest and recuperation to be completely absorbed, which generally takes about a month. Since the kidney is an important parenchymal organ, and this parenchymal organ is difficult to heal in the degree of wound healing, if the injury is accompanied by light activity afterwards, the healed wound or the wound that has already stopped bleeding can easily reappear with injury and bleeding. Therefore, for renal contusions, prolonged bed rest should be given and can be combined with an indwelling urinary catheter to reduce bladder tension or to reduce the possibility of getting out of bed. It is important to maintain a light diet throughout the healing period of the kidney wound, and the possibility of kidney bleeding can also be reduced by reducing the irritation and pressure of defecation.