Patients with pain in the eyes and the roots behind the ears may be caused by trigeminal neuralgia and orbital cellulitis. 1. Trigeminal neuralgia: Trigeminal neuralgia is the most common cerebral neurological disease, which is characterized by recurrent paroxysmal severe pain in the trigeminal nerve distribution area on one side of the face, and the patient may experience discomfort such as pain in the eyes and behind the ears. 2. Orbital cellulitis: orbital cellulitis is an acute inflammation of the soft tissues of the orbit, the onset of acute, serious can affect the cavernous sinus life-threatening, the cause of the onset of the periorbital structure of the infection foci of the orbit spread, the patient can appear in the eyes, severe pain, pain behind the ears and other symptoms. It is recommended that patients with significant pain in the eyes and back of the ears should consult a hospital in time to assess their condition and receive standardized treatment under the guidance of a doctor.