Back pain at night may have the following causes: First, osteoporosis, when osteoporosis involves the entire spine, can appear back pain when sleeping, especially when there is a vertebral compression fracture, the pain is very obvious, to conduct relevant blood tests, as well as spinal x-ray, CT examination, to make a diagnosis. Second, rheumatoid, when rheumatoid involvement of the spine, can also appear when sleeping back pain, can be in the morning when the back pain worsens, after a short period of activity can be improved, to carry out blood tests, as well as spinal x-ray, nuclear magnetic examination, to make a diagnosis. Third, tumors, when there are tumors or metastases in the spine, there can be resting pain during sleep, which can lead to back pain, and early blood tests, as well as MRI and CT examinations of the spine, should be performed for diagnosis. Fourth, severe dorsal fasciitis, severe dorsal fasciitis can also occur when sleeping back pain, to carry out relevant physical examination and examination to exclude other diseases to make a diagnosis.