Joint pain in the body can be caused by the following reasons: First, rheumatism and rheumatoid, rheumatism and rheumatoid can often lead to pain in multiple joints in the body, which can be accompanied by wandering pain and morning stiffness, then the rheumatism series of blood tests and x-ray of joints should be taken for early diagnosis and treatment. Second, gout, gout can involve multiple joints throughout the body in severe cases, resulting in joint pain, skin redness and gout stone formation, which should be diagnosed by examining joint X-rays and testing blood uric acid, and early treatment with oral uric acid-lowering drugs. Third, large osteoarthrosis, large osteoarthrosis can also involve a number of joints throughout the body, resulting in joint pain, deformity, the formation of bone superfluous, joint movement is limited, it is necessary to check the joint x-ray, CT to diagnose and treatment. Fourth, ankylosing spondylitis, ankylosing spondylitis patients can also have pain in multiple joints throughout the body, which can be accompanied by pain in the sacroiliac joints and lumbar spine, which should be diagnosed by blood tests and X-rays of the sacroiliac joints and lumbar spine.