Generally speaking, if the back of the foot is broken and swollen, the wound should be cleaned and sterilized after checking the wound, and the wound should be dressed after it is clear that there is no fracture or other trauma. For the dorsum of the foot broken skin, and the swelling of the back of the foot, first of all, you should check the affected limb, clarify the wound condition and the blood circulation of the affected foot, the affected foot with or without sensory disorders, after clarifying that there is no fracture of the affected foot and other traumas, fully expose the wound, carry out haemostasis, debridement of the wound, and then bandage the wound. After the injury, the activity of the affected foot should be reduced so as not to cause secondary damage to the wound and affect the healing of the wound. If there are fractures or other traumatic injuries to the foot, it is recommended to go to a regular hospital in time to have the fracture site repositioned and immobilized.