To determine whether it is lumbar pain or kidney pain can be judged by the location of the pain, the manifestation of the pain, and the factors of pain relief. 1. The location of pain: the location of lumbar pain is usually one palm away from the center of lumbar vertebrae, which is lower than the location of kidneys; while kidney pain is two palms away from both sides of lumbar region, at the bottom of ribs. 2. Pain manifestation: the symptoms of lumbar pain are mainly muscle pain, mainly dull pain, soreness, and may also be burning pain caused by nerve damage; kidney pain is a long-term swelling, dull pain is mainly, but also can be severe renal colic, usually accompanied by percussion pain. 3. Pain relief factors: general lumbar pain can be relieved after lying on their backs and resting; but kidney pain and body posture does not have much to do with changing posture can not be relieved. It is recommended that patients go to regular hospitals in time, and be judged by doctors according to the characteristics of their own condition, do not judge on your own, so as not to delay the condition.