There are many reasons for back pain, such as physiologic factors, lumbar fasciitis, joint or pelvic problems, and visceral diseases. 1. Physiological factors: prolonged work at desk, playing cell phone with head down, stooping labor, squatting work, etc. may cause back and waist pain due to catching cold and overwork. 2. Lumbar dorsal fasciitis: Lumbar dorsal fasciitis can show back and waist pain, especially in the two sides of the lumbar back muscle pain is more obvious, in a long time of inactivity, overactivity can trigger pain. 3. Joint or pelvic problems: lumbar vertebral osteophytes, lumbar intervertebral disc herniation, scoliosis, lumbar spondylolisthesis, congenital developmental deformities of the pelvis, degenerative changes in the hip joints and so on, will also appear obvious back and waist pain. 4. Visceral diseases: visceral diseases can also cause radiating pain in the back and waist, such as pancreatitis, heart attack, angina, cholecystitis, nephritis, kidney stones, pelvic inflammatory disease and pleurisy. There are other causes of back and waist pain, if the phenomenon occurs for a long time and can not be relieved, it is recommended to go to the hospital in a timely manner, please ask the doctor to clarify the diagnosis and give targeted treatment.