The causes of soft rib pain in patients are as follows: first, costal chondritis: the cause of costal chondritis is unknown, according to the literature, mostly due to viral infections, endocrine metabolic disorders, and stressful stimulation of the mind that leads to inflammation of the costal cartilage and the occurrence of pain at the costal cartilage. Second, local chest wall soft tissue injury: for example, acute external impact on the chest wall, or falls or contusions can cause local soft rib injury, and therefore can cause local pain. Third, chronic chest wall soft tissue strain: for example, prolonged improper sitting posture, twisted sitting, can cause bilateral intercostal muscle force imbalance, often manifesting as pain in the rib area on one side.