Electroconvulsive therapy (ECT) as a medical procedure of higher risk as well as a therapy evoking certain controversies requires strict obedience to the conditions of acquiring the patient's informed consent to the offered method of treatment. To acquire the patient's consent it is necessary to inform him/her about the different aspects of electroconvulsive therapy. The paper stresses that in the case of ECT therapy, the spoken information given to the patient seems insufficient. It is necessary to work out a Polish questionnaire for acquiring the patient's consent to electroconvulsive therapy and to apply it in all psychiatric institutions that carry out ECT procedures.