A comminuted fracture in the arm takes longer to heal, generally at least three months, and most take about six months. This is because a comminuted fracture will usually have a significant fracture misalignment and there may be localized bone loss, etc. The vast majority of comminuted fractures of the arm require surgical treatment. The first step is to improve the local X-ray examination and, if necessary, further CT and 3D reconstruction to determine the location of the fracture. After the local swelling subsides, timely repositioning and fixation are performed. If the intraoperative bone defect is obvious, timely bone graft is given to reduce the bone defect and help promote the healing of the fracture. It can also be combined with blood-stasis-activating drugs such as Danshen tablets and blood-activating and pain-relieving capsules, in addition to drugs such as deer melon polypeptide, which can help the fracture to heal. Regular follow-up x-rays are needed to understand the healing of the fracture and to avoid lifting heavy objects in the injured arm too early.