Nail bruising varies depending on the severity of the bruise and how quickly it can be eliminated. First, if the nail bruise is small in scope, there is no obvious local swelling and pain. At this time, local ice can be used to reduce tissue exudation, and after 24 hours, a hot ointment pack can be applied externally to effectively promote the absorption of nail bruises. Second, if the nail bruising is extensive and accompanied by obvious swelling of the nail bed and a sense of fluctuation. This means that there may be active bleeding under the nail bed, so the nail should be removed under local anesthesia to completely remove the bruise and hematoma under the nail bed, and then covered with sterile gauze with pressure, which can effectively promote the rapid absorption of the bruise.