Slight blurring of the fracture line five weeks after a fifth metatarsal base fracture is usually a sign of gradual healing of the fracture site. After a fracture occurs, X-rays, CT scans and other imaging tests will show the fracture line at the site of the injury. As the local bone grows and repairs itself, the fracture line will slowly blur, and sometimes the fracture line may disappear, indicating that the fracture site is slowly returning to normal. Five weeks after the fifth metatarsal base fracture, the soft tissue swelling will subside and a bone scab will form at the fracture site. Some people recover relatively quickly and will have a blurred fracture line. If the examination finds that the fifth metatarsal base fracture line is blurred, you should continue to brake to promote the growth of the broken end of the fracture, and if there is pain, swelling and other abnormalities, you must consult a doctor for examination in a timely manner.