Involuntary spasm is a medical condition in which the muscles of the body contract involuntarily and uncontrollably. It is also known as a TIC, which is a three-letter word that is often used to describe this condition. Involuntary spasms can be caused by a variety of medical conditions, including neurological disorders, metabolic disorders, and even certain medications. Symptoms of involuntary spasms can range from mild twitching to more severe muscle contractions. Treatment for involuntary spasms typically involves medications, physical therapy, and lifestyle changes.