It is not recommended to rub the head against the wall, because after hitting the head against the wall may cause scalp hematoma, and if you rub the local area, it is very likely to lead to hematoma enlargement. The correct treatment is as follows: ice compresses can be applied to the local area within 24 hours, hot compresses can be applied to the local area after 24 hours, and it is also recommended to use bandages with pressure to prevent the hematoma from expanding further. In addition, if the pediatric giant scalp hematoma fluctuates significantly, in order to promote healing, puncture aspiration can be carried out under close disinfection, and then also need to put pressure on the local bandage. In adults, aspiration is not recommended because of the risk of infection.