Ludin H P
Klinik für Neurologie, Kantonsspital, St. Gallen.
Klin Monbl Augenheilkd. 1993 May;202(5):408-11. doi: 10.1055/s-2008-1045615.
Headache is very frequent and it has many different causes. It is caused by a severe organic disease only in a small number of patients. In most cases a clinical examination, with special emphasis on the history, is sufficient for a correct evaluation. Only in selected cases additional investigations are needed. Headaches which necessitate an urgent examination are rather infrequent. In most cases the natural course may be observed for a certain period of time without the risk of missing important therapeutic measures.