Bioethics is the study of ethical dilemmas arising from advancements in biology, medicine, and biotechnology, focusing on issues like patient treatment, resource allocation, and the responsibilities of healthcare professionals. It is guided by principles such as autonomy, beneficence, non-maleficence, and justice, aiming to protect human rights and promote ethical conduct. The field addresses various issues, including informed consent, healthcare access, and research ethics, providing a framework for navigating the complex ethical landscape of modern healthcare.