What is the cause of pain below the right ribs after running

If there is no obvious pain and discomfort under the right rib at ordinary times, it should be considered that the pain is caused by running. When running, the thorax will twist left and right, and the amplitude of breathing will increase. Therefore, the muscle fibers and other soft tissues under the right ribs will be repeatedly pulled and stimulated. Over time, it will cause local congestion and edema, form sterile inflammation, and produce some inflammatory cellular factors, such as prostaglandin factor and tumor necrosis factor. These factors will stimulate the surrounding nerves and cause local pain. At the same time, these factors will also stimulate the surrounding tissues, causing inflammatory fluid exudation, so it will cause pain in this part, especially in strenuous exercise and deep breathing, the pain will be more obvious, this time to actively pay attention to rest, you can use anti-inflammatory analgesic drugs symptomatic treatment, local can also smear Voltaren ointment.