Ear bruising may be caused by local trauma, subcutaneous bruising, long-term skin pressure can also cause ear bruising, may also be caused by hypothermia.
1. Local trauma: when squeezed or collided, the subcutaneous blood vessels will be damaged and ruptured, and there will be different degrees of bruising, resulting in blue ears, which may be accompanied by pain, swelling and other uncomfortable symptoms.
2. Skin compression: keeping the same sleeping position for a long time during rest may cause the skin of one side of the ear to be compressed for a long time, and long time blood stagnation will also cause bruising, and numbness may also occur.
3. Low temperature: When the ambient temperature is low or the weather is cold, prolonged exposure to cold will cause the ear to appear blue, which is due to the contraction of blood vessels caused by low temperature, poor blood circulation.
When the symptoms of greening of the ears are more serious, you need to go to the hospital for examination in time, and actively cooperate with the treatment by consulting the doctor.