The correct hot compresses in hematoma should pay attention to the time and frequency of hot compresses, and pay attention to avoid scalding the skin. Hot compresses can dilate local blood vessels, improve local blood circulation, help accelerate local metabolism, can help promote the dissipation of local hematoma and inflammation, is a commonly used treatment after local injury hematoma. When hematoma occurs after trauma, hot compresses should be applied 48 hours after the injury. Hot compresses use hot towels to apply to the local hematoma, and pay attention to avoid the high temperature of scalding the local skin. Each hot compress should last 10-20 minutes, 2-3 times a day, hot compresses at the same time you can gently massage the local damage, is conducive to the dissipation of hematoma. After 2 days of hot compresses, if the hematoma and other symptoms are not significantly relieved, it is necessary to consult a doctor in a timely manner. After the hematoma should consult a doctor in time, under the guidance of a professional doctor for hot compresses and other standardized treatment, which is conducive to the early dissipation of hematoma.