Headache disorders are exceedingly common, debilitating neurological conditions, and there is a striking paucity of headache specialists nationally. However, headache education is underrepresented in the curriculum of neurology residency programs and few neurology residents elect to pursue headache medicine fellowships.
Laughing is a rare precipitating factor for headaches, and the pathogenesis underlying laugh-induced headache (LH) remains unclear.
Two cases of headache triggered predominantly by laughing were presented in this article. We also reviewed the published English literature regarding LH, summarized the clinical characteristics of LH, and discussed the probable pathophysiological mechanisms.