A variant of migraine
Mostly in men
Mostly in menOften situated behind one eye (usually the same eye); usually one-sidedComes on suddenly without warning; may wake the patient from sleep, at the same time each night.
Comes on suddenly without warning; may wake the patient from sleep, at the same time each night.Pain peaks within 5-10 minutes and lasts less than 1 hour; often severe, stabbing in nature The most intense type of headache: severity may lead to thoughts of suicide.Often triggered by alcohol or a prolonged excessive emotional or physical stress may precipitate a new cluster
Often triggered by alcohol or a prolonged excessive emotional or physical stress may precipitate a new clusterMay occur several times a day for weeks and then stopMay be associated with watery or red eyes/runny nose/nasal congestion; forehead/facial sweating; drooping/swollen eyelid
May be associated with watery or red eyes/runny nose/nasal congestion; forehead/facial sweating; drooping/swollen eyelid