After the operation of comminuted fracture of the heel bone, how long the pain disappears at night needs to be determined according to the care situation and wound healing, can not be generalized, usually need 6~12 weeks. When a comminuted fracture of the heel bone occurs, usually there are more fragments of the fracture, the fracture line is messy and irregular, and most of the time, the operation is performed by incisional reduction and internal fixation. Therefore, postoperative healing of comminuted fractures is relatively slow and usually takes 6 to 12 weeks to heal. There will be localized pain, especially at night, until the wound is completely healed. If the postoperative care is better, the recovery is accelerated, usually healing in 6~8 weeks, and the pain disappears at night after healing; if the postoperative care is not proper and the wound is infected, it will take 8~12 weeks to heal, and the pain will disappear at night at this time. Rehabilitation is an important part of fracture treatment, and you should actively cooperate with your doctor to carry out rehabilitation training, which can prevent complications and restore the function of the affected part as early as possible. After surgery for comminuted heel fracture, patients should strictly follow the postoperative precautions and do rehabilitation training, which can help speed up the recovery.