Usually, if the fracture of the metacarpal bone is mild and not displaced, it can be healed in about 4 weeks of recuperation. If the fracture is displaced, it is more difficult to heal and should be treated with surgery, which can usually be done in about 3 months after surgery. Depending on the patient’s individual condition and the severity of the fracture, the difficulty and degree of self-healing varies. If there is no displacement of the fracture, the fracture can be healed in about 4 weeks under the advice of the doctor. If the fracture is displaced, the patient should go to the hospital for treatment, and it will take about 3 months for the fracture to heal. If the patient has a fracture of the metacarpal bone, he should pay attention to the care of the fracture site, such as cast immobilization. At the same time, the patient should pay attention to the daily diet, so that the supply of nutrients is sufficient. In addition, the patient should carry out appropriate rehabilitation training to avoid muscle atrophy caused by prolonged low activity. If the patient has a fracture of the metacarpal bone, he should go to the hospital to confirm the diagnosis in time, and determine the treatment plan under the guidance of the doctor, and carry out the corresponding treatment.