Soreness on both sides of the back can be caused by the following reasons: First, lumbar dorsal myofasciitis, lumbar dorsal myofasciitis can have soreness and pain on both sides of the lumbar myofascia, often in the cold, the symptom of exertion is more obvious, in the bending of the waist to hold objects as well as after sitting for a long time, there can also be obvious soreness and pain symptoms, then we should check the lumbar spine of the X-rays, CT, and checkups, to exclude other diseases to be diagnosed; Second, kidney deficiency, kidney deficiency can also have soreness, can be accompanied by knee weakness, as well as fatigue, tiredness, general symptoms. Kidney deficiency can also have symptoms of soreness on both sides of the back of the waist, which can be accompanied by weakness of the knees and generalized symptoms of fatigue and tiredness. At this time to early to the Chinese medicine department pulse diagnosis, early oral kidney tonic drug treatment; Third, kidney disease when the kidneys have nephritis or other kidney disease, can also have both sides of the waist kidney area of the soreness of the symptoms, which can be accompanied by generalized edema, as well as hematuria, proteinuria symptoms. At this time, we need to check the ultrasound and CT of the kidneys, and conduct blood and urine tests as well as pathological tests to diagnose and treat the disease.