The common causes of anterior clavicular pain include traumatic fracture, dislocation of the acromioclavicular joint, osteomyelitis and so on. 1. Traumatic fracture: when the clavicle is affected by direct violence or indirect traumatic factors, such as excessive exercise, working in a high position, car accidents, etc., it may cause clavicle fracture, with clinical manifestations of pain, swelling and pain in the affected area, and limited shoulder movement. 2. Dislocation of acromioclavicular joint: when acromioclavicular joint is hit by external force, the joint capsule, acromioclavicular ligament and rostral clavicle ligament will be damaged, resulting in dislocation of acromioclavicular joint, which is clinically manifested as pain in the shoulder and limitation of activities. 3. Osteomyelitis: this disease is usually caused by bacterial infection, and the bone quality is destroyed, with clinical manifestations such as high fever, pressure and pain in the affected area, redness, swelling, ulceration and pus flow. There may also be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.