Over the last few years, news articles have declared that researchers have found the migraine gene. That’s not exactly true. Multiple genes are thought to be involved with migraine and all its variations. Several chromosomal regions for migraine have been identified, but only one true gene has been found – and that’s for the familial form of hemiplegic migraine. The "familial" part means that a close relative of someone with hemiplegic migraine also has hemiplegic migraine.