What is the cause of the pain? Is it caused by kidney deficiency?

Lumbar soreness may be caused by kidney deficiency, but it may also be caused by lumbar muscle strain, lumbar disc herniation, ureteral stones and other reasons.

Traditional Chinese medicine believes that the waist is the house of the kidney. When the patient has kidney deficiency, the waist cannot be warmed, so there will be a feeling of lumbar soreness. When the ureteral stone irritates the ureteral wall during migration, it usually causes ureteral spasm and affects the renal pelvis, resulting in renal colic and lumbar pain.