Background: Migraine is a chronic neurological disease with several trigger factors, including dietary, hormonal and environmental factors.
Purpose: To analyse precipitating factors in a sample of migraine patients.
Method: Two hundred consecutive migraine patients were interviewed about possible trigger factors for migraine attacks.
Results: Most patients showed at least one dietary trigger, fasting was the most frequent one, followed by alcohol and chocolate. Hormonal factors appeared in 53%, being the pre-menstrual period the most frequent trigger. Physical activities caused migraine in 13%, sexual activities in 2.5% and 64% reported emotional stress a trigger factor. 81% related some sleep problem as a trigger factor. Regarding environmental factors, smells were reported by 36.5%.
Conclusion: Trigger factors are frequent in migraine patients, its avoidance may decrease headache frequency and also improve patients' quality of life.