The pain in the body may be caused by diabetic peripheral neuropathy, rheumatoid arthritis, autonomic disorders, malignant tumors and so on. 1. Diabetic peripheral neuropathy: diabetic peripheral neuropathy caused by long-term high blood glucose levels, generalized sensory dysfunction, wandering pain, numbness, chills and fever and other symptoms. 2. Rheumatoid arthritis: autoimmune disorder leads to non-specific inflammatory reaction of synovial membrane of joints, resulting in generalized joint swelling and pain, impaired mobility, so the above symptoms will appear. 3. Autonomic disorder: sympathetic and vagus nerves are normally in a state of dynamic balance, but when the balance is disturbed, it leads to abnormal sensation in internal organs and other parts of the body, and the above symptoms may appear. 4. Malignant tumors: advanced malignant tumors with multiple metastases all over the body, especially bone metastases, will lead to the above symptoms. The pain in the body may be related to many factors, and it is recommended to consult a doctor in time, make a clear diagnosis and follow the doctor’s instructions to standardize the treatment.