Hi. It was called involuntary movements. There are several potential causes for involuntary movements. In general, involuntary movement suggests damage to nerves or areas of your brain that affect motor coordination. However, a variety of underlying conditions can produce involuntary movement.
In children, some of the most common causes of involuntary movements are:
hypoxia, or insufficient oxygen at the time of birth
kernicterus, which is caused by an excess pigment produced by the liver called bilirubin
cerebral palsy, which is a neurological disorder that affects the body’s movement and muscle function
Kernicterus is now rarely seen in the United States due to routine bilirubin screening of all newborns.
Make an appointment with your doctor if your child are experiencing persistent, uncontrollable body movements and you’re unsure of the cause.