Subcutaneous bruising caused by bump can take the following measures: 1, local skin impact, bump, there will be subcutaneous capillary rupture, resulting in subcutaneous bruising, it is recommended to use local cold compress immediately after the injury, local cold compress after capillary constriction can slow down the symptoms of subcutaneous bruising, can also reduce local swelling, most of the cold compress within 24 hours after the injury has obvious effect; 2, if If the amount of subcutaneous bruising is relatively small and no hematoma is formed, hot compresses can be applied after 2 days to promote local blood circulation and accelerate the metabolism and absorption of bruising, and oral blood-activating drugs such as Yunnan Baiyao capsules can be taken at the same time; 3. If the amount of subcutaneous bruising is relatively large and a hematoma is formed, it is recommended to follow up and observe within 1 week. So try to go to the hospital after having subcutaneous bruising, let the doctor check the specific situation and give timely treatment.