Migraine headache caused by earache should be strictly called migraine headache, which may be caused by excessive fatigue, or caused by otitis media, or caused by temporal neuralgia, tumor of the external auditory canal and other reasons. Migraine headache belongs to primary headache, which is usually caused by genetic, emotional and environmental factors. 1. Overexertion: Overexertion will stimulate the rich nerves around the ear and cause pain in the ear, and at the same time, it will involve the nerves in the head and cause neurogenic headache. 2. Otitis media: Inflammation of the middle ear canal due to bacterial infection can cause ear pain and other uncomfortable symptoms, and as the degree of ear pain increases, it will affect the surrounding nerves, resulting in the symptoms of migraine. 3. Temporal neuralgia: the ear area is rich in nerve tissues, and ear pain will stimulate the surrounding temporal nerves, so that the nerves will be involved in the pain, resulting in the phenomenon of migraine headache. 4. Tumor of external auditory canal: when the tumor occurs in the external auditory canal, it will compress the nerves around the ear and cause pain, and when the pain is too intense, it will involve the nerves in the head and cause migraine headache. If earache causes migraine, we should pay attention to it and suggest you to go to the hospital as soon as possible in order to find out the cause of the problem.