The common causes of elbow pain are fracture or dislocation of the elbow joint, injury to the muscles around the elbow joint, rheumatic immune system diseases, and other diseases such as bone tuberculosis. When pain occurs, you should go to the hospital for prompt treatment. 1. Fracture or dislocation of elbow joint: If there is a fall with the hand supporting the ground or the elbow supporting the ground, violent factors can lead to supracondylar fracture of the humerus, fracture of the small head of the radius, semi-dislocation of the head of the radius, dislocation of the elbow joint and other conditions, which can lead to pain in the elbow joint. 2. Muscle injury around the elbow joint: frequent use of hand sports or work such as badminton, tennis, etc. can cause frequent muscle pulling on the bones, resulting in chronic inflammation, which can cause elbow joint pain. 3. Rheumatic immune system diseases: elbow pain may also be related to the occurrence of rheumatoid arthritis, systemic lupus erythematosus and other diseases, due to autoimmune abnormalities, which cause inflammation around the joints and even bone destruction, resulting in joint pain, swelling, ankylosis, deformity and so on. 4. Others: In addition, bone tuberculosis or bone tumor leading to bone destruction can also lead to elbow pain. There are many causes of elbow pain, so patients are advised to actively seek medical treatment to avoid delaying their condition.