Within the scope of mental health protection, numerous practical problems arise concerning the issue of providing health services to a minor. Admission of a minor to a psychiatric hospital is associated in practice with numerous doubts. This part of the article describes the conditions of admission to hospital with the consent of the patient. It distinguishes and accurately describes situations where a minor is under or over 16 years of age. In addition, it explains situations where there is a contradiction of declarations of will by legal guardians in relation to admission, their inability to perform legal acts, or a contradiction of the statements of the minor and guardian. It also addresses the aspect of receiving written consent during the COVID-19 epidemic.