Motor tics are sudden, repetitive movements that a person makes, often without realizing it. These movements can include actions like blinking, head jerking, or shoulder shrugging. Motor tics can vary in intensity and frequency, and they may be temporary or chronic. Motor tics are commonly associated with conditions like Tourette syndrome, but they can also occur in isolation. They often begin in childhood and may improve with age. While the exact cause of motor tics is not fully understood, they are believed to involve a combination of genetic and environmental factors.