There are several common reasons for a patient to have a bulging bone behind the ear with pressure pain: a. The patient accidentally hits the bone behind the ear, which can cause a local fracture and accompanying hematoma formation, which can be accompanied by obvious bulging and pressure pain symptoms. Patients can improve the local X-ray or CT examination to clarify the nature of the lesion, repair the local fracture as soon as possible, remove the hematoma, and combine with anti-infection, analgesic, and edema treatment to relieve the pain symptoms of the bone behind the ear more quickly. If the patient has intracranial tumor lesions, the tumor cells can grow exogenously, causing the bone behind the ear to bulge and accompanied by obvious pain. It is recommended that the patient should have a CT or MRI examination of the head to clarify the specific location of the primary tumor, and then have the tumor removed as soon as possible, and after surgery, combine with local radiotherapy to improve the symptoms of bulging bone behind the ear with pain.