Pain at the three fingers behind the ear may be caused by cervical spondylosis, soft tissues in the neck, insufficient blood supply to the brain, etc. Patients should seek medical treatment in time to clarify the cause of the disease. 1. Head and neck muscle tension: long time head and neck are in forward leaning state, muscle tension at the back, patients will have neck and back pain and other symptoms. 2. Neck soft tissue injury: if the patient has been hit before the pain at the three fingers behind the ear, it should be considered to be caused by soft tissue contusion. 3. Insufficient cerebral blood supply: Patients with insufficient blood supply to the brain caused by cerebral arterial circulation disorders will have symptoms such as headache, dizziness, numbness in the hands and feet, and lack of concentration. When you find this symptom, you should actively consult a doctor for a clear diagnosis.