What is the cause of my cephalalgia (headache)?

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Last updated: March 31, 2025 • View editorial policy

Differential Diagnosis for Headache

  • Single most likely diagnosis: + Tension headache: This is the most common type of headache and is often described as a band or a squeezing sensation around the forehead, usually accompanied by muscle tension in the neck and scalp.
  • Other Likely diagnoses: + Migraine: Characterized by severe, throbbing pain, often unilateral, and can be accompanied by nausea, vomiting, and sensitivity to light and sound. + Sinus headache: Caused by inflammation or infection of the sinuses, leading to pain and pressure in the face and forehead. + Cluster headache: Extremely painful, occurs in cycles or clusters, and is often accompanied by nasal congestion and eye watering. + Medication overuse headache: Caused by frequent or excessive use of pain medications, leading to rebound headaches.
  • Do Not Miss (ddxs that may not be likely, but would be deadly if missed.): + Subarachnoid hemorrhage: A life-threatening condition caused by bleeding into the space surrounding the brain, often presenting with a sudden, severe headache. + Meningitis: Inflammation of the membranes surrounding the brain and spinal cord, which can be caused by infection and is a medical emergency. + Temporal arteritis: Inflammation of the blood vessels in the temples, which can lead to blindness if not treated promptly. + Brain tumor: Although rare, a brain tumor can cause headaches, especially if it is large or located in a sensitive area.
  • Rare diagnoses: + Trigeminal neuralgia: A chronic pain condition that affects the trigeminal nerve, causing intense, shock-like pain in the face. + Occipital neuralgia: A condition characterized by inflammation or irritation of the occipital nerves, leading to pain in the back and side of the head. + Hypnic headache: A rare type of headache that occurs only during sleep and wakes the person up. + Thunderclap headache: An extremely severe headache that reaches its maximum intensity within a minute, often indicative of a subarachnoid hemorrhage or other serious condition.

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.