The fracture seven months before the bone scab grows, most likely because the fracture was heavily crushed at the time, but also because the fracture site blood circulation damage is heavier, affecting the normal growth of bone scab, so it takes longer to repair. You can give external fixation in plaster appropriately and supplement calcium adequately, such as oral calcium gluconate, calcium carbonate and vitamin D3, etc. You can also take bone dragon capsules to supplement calcium. Also take more sunlight to promote calcium ion deposition and avoid drinking carbonated drinks. Generally, fractures heal in about 12 months, which is the normal healing rate, so there is no need to worry too much. Avoid putting weight on the affected limb too early to avoid secondary fracture, and perform proper joint function exercise to avoid joint stiffness.