Hot ears can be caused by environmental factors, localized pressure, infection and other factors. 1. Environmental factors: from the cold environment into the high temperature environment, due to the auricle at the blood supply is rich, vascular rebound expansion, will lead to localized ear burning. 2. Pressure: such as long time wearing earmuffs or headphones, the ear part of the long time pressure, so that the local congestion, will also make the local ear hot, eliminate the above triggers can be improved by themselves. 3. Infectious factors: such as auricular infections and other diseases, the infection continues to worsen, resulting in local or whole auricle congestion, redness, swelling, pain, will make the local hot. Hot ears may also be caused by emotional excitement, after exercise, fever, etc. It is recommended to consult a doctor for examination and timely treatment after diagnosis.