Myoclonic seizures are brief, involuntary muscle jerks that can occur in one or more parts of the body. They often happen suddenly and can feel like a quick twitch or spasm. These seizures can occur in isolation or as part of a larger seizure disorder, such as epilepsy. They are typically not harmful but can be disruptive, especially if they happen frequently. Myoclonic seizures can be triggered by factors like lack of sleep, stress, or flashing lights. Treatment options may include medications to help manage the frequency and intensity of the seizures.