A back spasm happens when muscles begin to painfully twinge, seize, or contract. The muscles in your upper, middle, and lower back are divided into three types: intrinsic or deep muscles ...

Hemifacial spasm (HFS) is a neurological disorder manifested by twitching on one side of the face due to involuntary contractions of the eyelid and other facial muscles. It usually begins gradually ...

Pope Francis experienced a serious health scare with a bronchial spasm after inhaling vomit, complicating his recovery from double pneumonia. He was placed on noninvasive mechanical ventilation ...