After trauma hematoma hardened, must be selected according to the actual clinical manifestations, if it is within 3 days of the injury at the time, there may be a new issue of blood need to promptly go to the hospital for appropriate treatment, including the appropriate cold compress or compression to stop bleeding. Within 3 days sometimes the ruptured small blood vessels rupture again, it is easy to cause the bleeding tension to increase, giving an illusion of hardening. If the blood after trauma belongs to 7 days later hardened, often is the normal process of hematoma mechanization absorption, do not worry too much special, just slowly wait for time, will gradually harden and then liquefy, the later will gradually improve, must be selected according to the situation. If the hematoma hardens because of bleeding, it must be sent to the hospital for treatment in a timely manner, and it is impossible to rely solely on a single means to cure at this time.