A muscle spasm — also known as a charley horse, muscle cramp or twitch — is a sudden, involuntary movement in one or more muscles. Common causes include stress, exercise, or dehydration, but nerve ...

Abdominal spasms — which some people refer to as stomach spasms or twitching — occur when muscles in the stomach or intestines contract. These spasms can range in intensity and duration. Stomach ...

Colon spasms can affect the frequency, shape, and urgency of your bowel movements. They can occur with trapped gas and some health conditions, including irritable bowel syndrome and ulcerative colitis ...

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 ...