Cramps are sudden involuntary contractions that involve individual muscle groups or the entire body. Tonic-clonic paroxysms are accompanied by loss of consciousness, urination, respiratory failure. Causes of seizures include organic pathology of the central nervous system, toxic and metabolic damage to neurons, hyperthermia, and other disorders. Diagnosis is carried out using CT and MRI of the brain, EEG, laboratory tests. In complex treatment, anticonvulsants, pathogenetic and etiotropic therapy, and surgical correction are used.