The pain is most pronounced on the third day after the rib injury because the injured area bleeds after the rib injury, which causes damage to the soft tissues around the rib. However, the swelling of the soft tissues will peak within 72 hours, which means that the pain is most pronounced on the third day after the general injury, so the patient must stay in bed and rest for three days after the surgery. Try to walk as little as possible and keep your ribs warm to avoid getting cold, as this can exacerbate the pain at the site of the rib injury and seriously affect the patient’s life. It is better to go to the hospital for CT examination or 3D reconstruction to get a comprehensive and effective understanding of the degree of rib injury and to develop a corresponding treatment plan. During the recovery period, do not eat spicy and stimulating food, quit smoking and alcohol, and pay attention to rest to avoid too much activity or premature activity, which may aggravate the pain at the injured part.