Patients with local bruising that turns purple after donating blood will recover completely in about a few days. It should be analyzed objectively based on the patient’s own repair ability and the size of the local bruise, whether the patient takes active treatment and other factors. First, if the patient’s own repair ability is strong, the local bruise range is small, and at the same time, the patient timely gives the bruise, external hot towel, hot amulet package, to promote the local bruise faster absorption. The local bruise can be completely faded in 3-5 days after the local bruise becomes purple, and can often achieve better treatment effect. Second, if the patient’s own repair ability is poor, the local bruise is larger in scope, and the patient is not given local physical therapy treatment. The absorption time of the bruise is long, and some patients need about 7-10 days to slowly return to normal to obtain certain treatment effect.