The most common causes of joint popping during push-ups are physiologic factors, incorrect posture, ligament laxity, and osteoarthritis. 1. Physiological factors: when doing push-ups, excessive friction or extrusion between joints may cause popping sound, which is usually not accompanied by pain or other discomfort. 2. Incorrect posture: If the patient does push-ups, the force is not balanced, causing unilateral pressure, it is also easy to cause damage to one side of the joint due to excessive pressure, and then popping sound. 3. Ligament laxity: if the elderly patients, ligament injuries or a history of ligament trauma, ligaments are prone to laxity, and then ligament pressure is too large in the joints will be prone to produce a sound when the activity. 4. Osteoarthritis: if the patient due to various factors damage the joint cartilage cells, resulting in secondary osteophytes in the joints, do push-ups when the pressure is too large it is easy to cause friction between the bones and the cartilage, and then appear popping sound. Caused by doing push-ups joint ringing cause more, if the symptoms continue to no relief, it is recommended to timely to the hospital to identify the cause of the disease, by the doctor targeted treatment.