Headaches and Migraines Why Do Migraines Occur? Share Pin Email Headaches and Migraines Basics Migraine Symptoms Diagnosis Treatment Coping Understanding Migraines Updated April 06, 2016 Why do migraines actually occur? Here's what to know. Up Next Up Next Video What is a Migraine? Up Next Video Are Migraines Dangerous? Up Next Video How to Cure a Migraine Up Next Video Are Migraines Connected to Strokes?