In outpatient clinics, we encounter many patients who visit the clinic for lumbar soreness and lumbago, and they are worried about kidney disease. In Chinese medicine theory, it is believed that ” the waist is the house of the kidney, and the Governor’s vein follows the spine and belongs to the kidney, so lumbar soreness and pain are related to the kidney”, which is also the main mechanism of kidney deficiency and lumbago in Chinese medicine. However, in clinical practice, kidney deficiency can present symptoms of lumbar soreness and lumbar pain, but lumbar soreness and lumbar pain are mostly not caused by kidney disease. Most of the causes of lumbar symptoms are related to the locomotor system, such as lumbar muscle strain, lumbar hip fasciitis, lumbar disc herniation, etc. The main differentiation point is that kidney deficiency lumbago is mostly manifested as vague pain in the lumbar region, soreness and weakness, lingering and not healing, and like to rub and press; while lumbar muscle injury and other lumbago are mostly manifested as activities that can cause increased pain on one or both sides of the lumbar region, and there is often obvious pressure pain on both sides of the spine. At the same time, many patients worry that lumbago is a manifestation of nephritis and renal failure, in fact, as long as most patients with kidney disease do not show lumbago, routine urine tests can be performed in the clinic to exclude it.