Clonic convulsions are irregular short-term spasms, which are characterized by a rapid change in periods of contraction and relaxation of skeletal muscles. Occur against the background of epilepsy, cerebral damage of an infectious, neurodegenerative, toxic or other nature. The cause of convulsive paroxysms is confirmed by laboratory tests, genetic tests, neuroimaging methods, EEG. The basis of therapeutic correction is the use of anticonvulsants, resistant variants require a solution to the issue of neurosurgical care.