There are several possible causes of lumbar pain on both sides: first, lumbar muscle strain, when the lumbar muscle strain can appear on both sides of the waist pain, often due to long-term sedentary or cold, long-term bending and holding things, then we carry out relevant lumbar spine examination to exclude other diseases to make a diagnosis. Second, lumbar disc herniation, lumbar disc herniation can also appear on both sides of the waist pain, then we have to carry out relevant lumbar spine CT, nuclear magnetic examination to diagnose. Third, rheumatoid diseases, such as rheumatoid spondylitis, or ankylosing spondylitis, can also cause pain on both sides of the waist, then we have to carry out the relevant blood tests and lumbar spine X-ray examination to make a diagnosis. Fourth, tumor or tuberculosis, when the lumbar spine has a tumor or tuberculosis, can also appear on both sides of the waist pain, then we have to carry out the relevant lumbar spine nuclear magnetic examination and the relevant blood tests to make a diagnosis.