The study draws attention that minor patients require a special attention and support, hence protecting their rights is an actual issue. In the literature it has been recognized that human rights are a very important factor in children's treatment. This rights-based approach conferes children legal personality, which has implications for health-services and health policy. Chlidren patient's rights are a result of patient rights in addition of children's rights, emerging from general human rights. Self-determination or authonomy is in the centre of these rights, however statutory regulations are deficient and not always clear. It is questionnable that medical decision-making exercised by the child should have any restrictions. There are two theories, the one sustains full authonomy, the other consideres as acceptable limited self-determination. The author adopted the latter, that the child's autonomy is not an absolute right. This article is based on a quantitative research which demonstrates the above pronounced conslusion.