Recovery from rib fracture lung contusion usually takes 2-3 days or 1-2 weeks, or even 1-3 months in severe cases, and the exact time required is related to the severity of the disease. 1.2-3 days: If the CT of the lung shows only slight exudation, the symptoms may be relatively mild and basic recovery can be achieved in about 2-3 days. 2.1-2 weeks: If there is fluid or inflammation in the chest, it may take about 1-2 weeks for the lungs to return to normal. 3.1-3 months: If the symptoms of a lung contusion are particularly severe and there are fractured ribs or an infection in the lungs, surgery may be needed to relieve the condition. In this case, the recovery time for a lung contusion is about 1-3 months. Please seek medical attention if a lung contusion occurs to avoid delays.