Falling to the waist may not damage the kidneys, only localized skin contusion or soft tissue injury, etc.; it may also damage the kidneys and cause closed injuries such as renal contusion, renal split injury, renal whole-layer fracture, renal vascular trauma, etc., which requires timely medical consultation and clarification of the condition. Kidneys are located in the human body behind the peritoneum on both sides of the spine, fall to the waist may only appear local skin contusion or soft tissue injury, at this time the general will not damage the kidneys, but can feel the local pain in the waist, such as pain is recommended to consult a doctor in a timely manner. Falling to the waist may also damage the kidneys, mostly closed injury, there may be renal contusion, renal split injury, renal full-layer laceration, renal tissue vascular trauma, etc. Usually, it is necessary to pay attention to whether there is any lumbar and abdominal pain, hematuria, and lumbar and abdominal masses. It is recommended to rest in bed, timely medical treatment, after a clear diagnosis, follow the doctor’s instructions standardized diagnosis and treatment. After falling to the waist must be timely to the hospital, under the guidance of the doctor to improve the relevant examination to clarify the diagnosis, and actively standardize the treatment, so as not to delay the condition.