Taking a single rib fracture as an example, the pain generally lasts for one to two weeks. Then, over two to four weeks, the pain at the site of the rib fracture gradually eases and stabilizes. In the later stages, as the fracture healing progressively strengthens, the pain will gradually lessen until there is no significant pain. This period is generally about one to three months after the fracture, meaning that the most significant pain from a rib fracture usually lasts from one to two weeks, and then, as the fracture heals, the pain gradually decreases and improves.