"And always let your conscience be your guide" were the words of Pinocchio's consultant, Jiminy Cricket. Conscience can be defined as a subjective standard of morality, which involves the process of applying and engaging in individual knowledge of moral principles and values ​​to specific cases. Although, according to the Catholic Church, a well-formed conscience should reveal God's will and be in line with Church teaching, this is not always the case. Since there are no absolute moral values ​​in conscience, decisions can be made on the basis of purely subjective criteria, which can lead to moral relativism. This issue is currently of great concern to bioethicists; Should conscience be the primary guide for ethically based medical decisions? When considering ethical values ​​related to medicine, the role of conscience is extremely significant. Contrary to popular belief, an ethically grounded conscience is much more than Freud's "still small voice" that an individual can hear, but a well-formed conscience is, rather, a statement of inductive reason. To have a well-formed conscience, an individual is obliged to inform himself about ethical standards, incorporate that knowledge into his daily life, act on that knowledge, and take responsibility for those actions. Therefore, a mature conscience is formed in dialogue with the sources of moral wisdom, which are tradition, Scripture, the teaching of the Church, reason and experience (Clark, notes, 2/21). Historically speaking, conscience in Greek times was called only as consequent conscience, which limited itself to judging a previously performed action, while it is believed that Paul first introduced the antecedent conscience, which is considered a guide for the present and... half of the sheet... that is, if the patient is not influenced by third parties, has a free and informed conscience, and there is only a reasonable hope of benefit if burdens are imposed on the patient or if there are excessive costs to the family or community . Therefore, if the patient went through all 3 senses of consciousness, he would violate his integrity in deciding to undergo treatment. When considering conscience, it is therefore extremely important to know that the patient or even the healthcare professional has used a good sense of conscience. informed conscience as its guide, so that chaos and disregard for standards of care can, in general, be avoided. WORK CITED Clark, Peter, S.J., Ph.D. NoteCurran, Charles E. Directions in Fundamental Moral Theology. Notre Dame, Indiana: University of Notre Dame Press, 1985Kavanaugh, John F. "Conscience Matters." Ethics notebook. 1997.