Push-ups can be caused by physiological phenomena, osteoarthritis, costochondritis and other reasons. 1. Physiological phenomenon: In the process of doing push-ups, the soft membrane bones between the joints will rub against each other, which can produce the phenomenon of joint ringing. This is a physiological phenomenon and generally does not require special treatment. 2. Osteoarthritis: It is a chronic joint disease characterized by degenerative changes in articular cartilage and secondary osteophytes, the etiology of which is still unclear. It can cause a decrease in synovial fluid in the joint cavity, leading to joint rattling during push-ups, which may be accompanied by pain. 3. Costal chondritis: It is mainly caused by chronic strain and infection. Patients may have swollen and bulging rib cartilage area with localized pain and tenderness. Upper limb activity can also be limited, local soft tissue necrosis and other conditions, so that when doing push-ups can produce the phenomenon of joint ringing. Push-up joint ringing can also be seen in other diseases, it is recommended that patients go to the hospital in a timely manner, follow the doctor’s instructions for treatment, to avoid delaying the condition.