Many of us have felt a muscle in some part of our body suddenly and involuntarily tighten, causing a twitch or even severe ...

Medically reviewed by Oluseun Olufade, MD Sprains and strains are common musculoskeletal injuries that can cause significant pain, swelling, and impaired movement of a joint. However, sprains differ ...

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 ...