There are many causes of pain at the clavicle and shoulder junction, commonly prolonged chronic strain, as well as fractures and dislocations caused by trauma, as follows: First, prolonged chronic strain: excessive exposure to cold and cold will lead to local aseptic inflammation, causing acromioclavicular ligamentitis, rostral ligamentitis, periarthritis, which will lead to significant pain symptoms at the clavicle and shoulder junction, requiring attention to rest and protection If you have a fracture of the distal clavicle and a dislocation of the acromioclavicular joint, it will also lead to painful symptoms at the clavicle and shoulder junction. To make a clear diagnosis, a local general X-ray examination can be performed.