Clonic Seizures - Epilepsy Foundation Clonic (KLON-ik) seizures are rare and most commonly occur in babies Most often, clonic movements are seen as part of a tonic-clonic seizure Jerking movements alone, as with a clonic seizure, may last a few seconds to a minute
Tonic-clonic (grand mal) seizure - Symptoms and causes Usually, a tonic-clonic seizure is caused by epilepsy But sometimes this type of seizure can be triggered by other health problems, such as a high fever or damage to the brain
Tonic and Clonic Seizures - Johns Hopkins Medicine Clonic seizures are characterized by repeated jerking movements of the arms and legs on one or both sides of the body, sometimes with numbness or tingling If it is a focal (partial) seizure, the person may be aware of what’s happening During a generalized seizure, the person may be unconscious
Types of Seizures | Epilepsy | CDC Myoclonic: Short, lightning-quick, jerking movements Clonic: Periods of rhythmic shaking or jerking movements There are two main types of focal seizures They are distinguished by whether they cause a loss of awareness These are: Focal onset aware seizures Focal impaired awareness seizures
Tonic-Clonic (Grand Mal) Seizure: Symptoms Treatment A tonic-clonic seizure causes sudden muscle stiffness, shaking and loss of consciousness It happens when abnormal electrical activity spreads through your brain
Tonic-clonic seizures - Epilepsy Action How can someone help me during a tonic-clonic seizure? Our short online first aid course shows you what tonic-clonic seizures can look like, and how to help when someone has one
Clonic Seizures - The Defeating Epilepsy Foundation If an individual has a clonic seizure, do not restrain the individual or put anything in their mouth Individuals may have multiple seizures in a row, so the individual must be in a safe place, clear of debris to prevent fall or further injury