Local limb tics

Local limb tics are common in local convulsions, which are also known as habitual spasms. They are sudden and sudden contractions of a group of muscles. Such movements occur quickly and involuntarily, and are often repeated. Sometimes appearances seem to be performing a certain action, but they are actually purposeless. It is one of the common types of neurosis in children and is rare in adults. Physiological local convulsions can be seen in the transition phase from wakefulness to sleep in normal people.