The critical point is whether they become active, and just how active they become. That is true of any lesion.

I know many people who have spinal lesions, and over 20 - 30 yrs have never had any problems what-so-ever from them. When some people hear "spinal" or "brainstem" lesions, it conjures up all kinds of scary scenarios . . . but this is not what happens for most people.

Why do you want to know, friend? I can tell you what the brainstem controls, but it is probably one of those definitions I would consider offering on a "need to know" basis. Are you are having symptoms that you think might be related to the brainstem, and you have a brainstem lesion that you know of . . . is that where this is coming from?

Cherie