Hemifacial spasm (HFS) is a rare movement disorder that causes involuntary muscle contractions on one side of the face. It typically starts with painless but annoying twitching around one eye. Over ...

The infectious disease can cause muscle spasms strong enough to fracture bones. It's fully preventable, but vaccination rates are slipping.

It may start as something we’re all familiar with: tiny spasms around your eyelid. “When you’re tired or stressed and you get fluttering under your eye or eyelid and it’s really annoying,” says Sharon ...

Hemifacial spasm is a disabling movement disorder caused by vascular compression of the facial nerve at its root exit zone, leading to involuntary unilateral contractions of facial muscles.