The lack of pain at the time of the fracture may be due to the fact that the broken end of the fracture is not significantly displaced and has not produced significant stimulation of the surrounding tissues, thus leading to the lack of symptoms at the time, which is detected only after a few days of activity when the broken end is displaced. Some patients may have no pain symptoms for a short period of time after the trauma because the fracture breaks are not significantly displaced and do not produce significant stimulation of the surrounding tissues. However, with the increased mobility of the fracture breaks, or the continued exudation of inflammatory exudate produced by the soft tissue contusion, the stimulation of peripheral nerves will aggravate the pain symptoms at the injury site, and it is at this time that a CT examination may reveal the fracture. If the fracture is not too severe, does not show significant displacement, and does not cause severe blood accumulation or contusion, pain symptoms may not be present for a short period of time, and it may not be possible to detect the fracture in time. The fracture may be detected when the patient further refines the relevant imaging tests. Once the fracture is detected, try to avoid activities and go to the hospital in time for treatment under the guidance of a specialized physician.