Twenty days after a rib fracture, if there is still intolerable pain, you need to protect the chest, rest in bed, and if necessary, surgical intervention. Generally speaking, twenty days after a rib fracture, the pain will be relieved, and even if there is pain, it is within the tolerable range and is considered mild, but if there is intolerable pain, it is an abnormal phenomenon, which is usually caused by inaccurate fixation of the fracture, movement of the broken end, and then irritation of the local nerve. If the pain occurs after activity, when coughing, and after catching a cold, it should continue to be protected by an externally immobilized chest strap, and be improved by bed rest and reduced activity. If the effect of conservative methods is not obvious, it is necessary to promptly review under the guidance of the surgeon to determine the presence of misalignment, or even the possibility of secondary surgery.