The document presents an introduction to medical bioethics, emphasizing the ethical treatment of patients through historical frameworks like the Hippocratic Oath and the four pillars of bioethical decision-making: autonomy, beneficence, nonmaleficence, and justice. It discusses the importance of ethics in clinical research, informed consent, and ethical guidelines such as the Nuremberg Code and the Declaration of Helsinki. Numerous examples and scenarios illustrate the application of these ethical principles in healthcare settings.