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Hemiplegic migraine (HM)

<strong>Hemiplegic Migraine (HM) is a rare and severe form of migraine. It is characterized by weakness, often affecting one side of the body. Doctors distinguish two types of hemiplegic migraine. If multiple family members are affected by HM, we call it familiar hemiplegic migraine (FHM). If there are no other family members affected, we call it sporadic hemiplegic migraine (SHM).</strong>

Many patients also have other transient neurological complaints, called auras that gradually develop over time preceding headache such as:

  • temporary visual changes: blind spots, flashing lights and zig-zagging lines
  • temporary numbness or tingling in an arm, leg or the face
  • difficulty with speech; slurred speech, trouble remembering words
  • decreased consciousness

Read more about hemiplegic migraine.


Several studies are being conducted at the LUMC into hemiplegic migraine. At the moment we are not looking for participants for these studies.