How long it takes for a fracture in the foot to grow a scab must be determined by the age of the patient. In the case of a newborn infant, the fracture will grow the fastest, and it is possible to see a very noticeable growth of the bone scab in about 1 week. In children around 6 years of age, it takes about 3-4 weeks for the bone to grow after a foot fracture. In the case of an adult with a foot fracture, the original bone scab growth time is 4-6 weeks after the fracture, and it takes about 12 weeks to reach the bony bone scab growth. However, in the case of middle-aged and elderly people, especially those with osteoporosis, the bone scab growth may be about 2-4 weeks later than in adults.