Bio-ethics, also known as medical ethics, is the study and employment of moral values in medical science. This includes clinical care and clinical research. Bio-ethics, Individuals working in the field of medicine are faced daily with moral dilemmas and difficult decision-making such as :when life begins and when life ends the withholding or withdrawal of treatment the allocation of scarce medical resources the accessibility of resources. Ethical issues near the end of life (EOL) often arise because of concerns about how much and Bio-ethics, what kind of care make sense for someone with a limited life expectancy, particularly if the patient is very old. There is often conflict between physicians or nurses and family members about what constitutes appropriate care. Many of these conflicts can be avoided by clarifying who makes the difficult decisions to limit care and by advance care planning.