| umls-concept:C0393593 | skos:definition | CSP: syndrome dominated by involuntary, sustained or spasmodic, patterned, and repetitive muscle contractions; frequently causing twisting, flexing or extending, and squeezing movements or abnormal postures.,MEDLINEPLUS: <p>Dystonia is a <a href='http://www.nlm.nih.gov/medlineplus/movementdisorders.html'>movement disorder</a> which causes involuntary contractions of your muscles. These contractions result in twisting and repetitive movements. Sometimes they are painful.</p> <p>Dystonia can affect just one muscle, a group of muscles or all of your muscles. Symptoms can include <a href='http://www.nlm.nih.gov/medlineplus/tremor.html'>tremors</a>, <a href='http://www.nlm.nih.gov/medlineplus/voicedisorders.html'>voice problems</a> or a dragging foot. Symptoms often start in childhood. They can also start in the late teens or early adulthood. Some cases worsen over time. Others are mild.</p> <p>Some people inherit dystonia. Others have it because of another disease. Either way, researchers think that a problem in | lld:umls |
