Approach of the patient with headache

Headache is part of an alarm system announcing that somewhere in the body of the person who has this accuse something peculiar happens in the pathological or physiological point of view. Patients have various forms of headache and, therefore, each case must be correctly diagnosed, being necessary a very thorough medical history, in order to characterize each type of headache. Although most patients with headache have a normal physical exam, it is extremely important to continue the investigation plan with functional testing, that will guide both the diagnosis and treatment. Approach to the patient with headache starts with the usual paraclinical tests. In this paper, the authors bring into question electrophysiological and neuroimaging paraclinical testing of patients with headache.