Medically reviewed by Brigid Dwyer, MD Key Takeaways Involuntary muscle movements happen when your body moves without you intending it, like with tics or tremors.  The causes of involuntary movements ...

When we think of movement disorders, the tremors associated with Parkinson’s disease are probably what first spring to mind. However, there are other equally debilitating and much less well-known ...

The case description for a Case Records of the Massachusetts General Hospital appears below. What is the diagnosis? Cast your vote. The correct diagnosis, along with the full description of the case ...

Tardive dyskinesia (TD) is an involuntary movement disorder caused by long-term dopamine-blocking medications. Prolonged use may create chemical imbalances in brain areas controlling movement.

Chorea-acanthocytosis is a rare genetic disorder of the nervous system. It causes involuntary jerks and twitches in the muscles, known as chorea, and star-shaped red blood cells, known as ...

A scientific review on autoimmune neurological diseases reveals what occurs in our body when the immune system, by mistake, produces antibodies that target a protein essential for the normal ...

Q: I am in my early 50s, and I am experiencing a problem that can cause social embarrassment. When I stand up, I pass small amounts of gas. This can happen immediately as I stand up or as I start ...