LAUSR

Headache is a common problem in medical practice and can be the presenting feature of both benign and serious conditions. The International Classification of Headache Disorders divides all headache entities into primary and secondary. Primary headaches are those where there is no underlying cause identifiable and where the diagnosis is made through detailed history and pattern recognition. Secondary headaches are those where the headache is a symptom of an underlying cause that is identifiable on examination or investigation. Primary headaches are the most frequent type (approximately 90%), while secondary headaches account for 10% of all. By definition, primary headaches such as migraine, tension-type headache, or cluster headache have no underlying secondary cause [1]. Alarm signs and symptoms (red flags) that should be raise the suspicion of an underlying life-threatening condition are as follows: