A child’s hand caught in a door can be determined by observing the movement and shape of the hand, or by imaging tests to determine whether the bone is injured. If the child’s pain is more serious, it is recommended to consult a doctor in time for relevant examinations. 1. Hand activity: you can let the child to move the fingers, can be normal bending straight, no obvious pain, may be no injury to the bone, is not a big problem. Available ice water or ice on the cold compress, which can effectively reduce the occurrence of finger swelling. 2. Appearance: You can observe the appearance of the child’s hand, whether there is acute swelling or deformity, if there is swelling and deformity, may be dislocated or fracture of the joints, you need to consult a doctor in time. 3. Imaging: If a child’s hand is pinched by a door and is suspected to have been injured to the bone, it is recommended to go to the hospital in time to have an X-ray examination of the joints of the hand, through which it can be observed whether or not the bone has been injured. The child was pinched by the door to the hand, it is recommended to go to the hospital for X-ray examination, you can observe the subtle injuries, if there is no injury to the bone, after 48 hours you can reduce the swelling of the fingers through hot compresses.