Continual tics of a part of the body or face

Localized convulsions: continual tics of the body or face. For example, limited motor epilepsy often manifests as repeated twitching of the corners of the mouth, eyelids, hands, or feet; if the twitching starts from one place, it gradually expands according to the arrangement of the cerebral cortex motor area, that is, it starts from the thumb on one side and gradually extends to the wrist. , Arms, shoulders, it is Jackson epilepsy. On the other hand, tetany is intermittent tonic limbs (most prominent in the hands of the upper limbs) tonic muscle spasm, and the typical one is a "midwife" hand.