Patient Expert

Idiopathic means the same side; affecting the same side of the body.

When discussing Migraine disease and other headache disorders, we generally see ipsilateral used to describe symptoms that occur on the same side of the head or body a the headache. This can happen in Migraine, and is quite common with symptoms of cluster headache.

You can read more about some of the ipsilateral symptoms of cluster headaches in Cluster Headaches - The Basics.