early 15c., from Middle French lesion, from Latin laesionem (nominative laesio) injury, from past participle stem of laedere to strike, hurt, damage, of unknown origin. Originally with reference to any sort of hurt, whether physical or not.
Most migraines last about 4 hours, but severe ones can last up to a week. How often they happen differs for everyone, but itâs common to get two to four headaches per month. Some people may get migraines every few days, while others get them once or twice a year.
The headache can last for years and almost every day for several hours. It should be noted that such a record is suspicious for a serious underlying cause (for example cancer) and only after testing and exclusion of any such possibility can the diagnosis lead to daily headaches. It is unknown what causes daily persistent headaches.