The right side of the back may have the following causes: first, lumbar muscle strain, if the long-term use of the right side of the waist for labor or work, there will be chronic injury to the right side of the lumbar muscles, then the right side of the back can appear sore symptoms, to carry out relevant physical examination and lumbar spine examination, to exclude other diseases to diagnose. Second, lumbar dorsal myofasciitis, lumbar dorsal myofasciitis and lumbar muscle strain is similar in etiology, can also appear on one side of the lumbar back pain symptoms, then to carry out relevant examination and physical examination. Third, kidney disease, when the kidney tumor or stones, nephritis, cysts, can also appear on one side of the lumbar pain symptoms, then the relevant kidney ultrasound, CT and urine tests to make a diagnosis.