Nine patient whose epileptic seizures had began in the menarche phase were studied. Two of these patients had generalized seizures and seven partial seizures with or without generalization. The physical and neurologic exam was normal in all patients except one who had aortic stenosis. The EEG showed focal spikes in temporal regions in four patients, intermitent generalized slow waves in one and was normal in four patients. Seven of these patients complained of increasing of the seizure frequency near to the menstrual period. Data registered are discussed. It is concluded that the observation of a larger number of patients is necessary to confirm these data.