The word bioethics comes from the Greek words "bios" meaning life and "ethos" meaning custom or habit and examines what is good and how that good can be implemented in human action and behavior in order to qualify as ethical behavior. Physiotherapy is an independent health profession whose practice is evidence-based, and rehabilitation is a process that encourages activity and participation through physical therapy. Croatia is known around the world for its bioethics and it has developed into a strong and productive area of both theoretical and practical engagement. In the mid-1970s, the first indications of ethical norms were recorded in Croatian hospitals, and the first ethical body established was the Commission for Medical Ethics by the Croatian Medical Association. Morality represents good will and it is the source of human thinking while ethics is a philosophical discipline that studies a set of principles of moral behavior based on values such as goodness, honesty, truth, humanity. The principle is considered the basic norm for determining moral thinking and acting, and these are: autonomy, harmlessness, benevolence and righteousness. Clinical bioethics is primarily focused on ethical issues related to patient care, and medical ethics encompasses ethical theory and practice in medicine and health care in general, and professional ethics in its field such as physics ethics, ethics of nurses. Palliative care in physiotherapy is a good example of the usefulness and benefits of bioethics and its principles. Proper communication allows for improved treatment outcomes and reduced chances of violating some bioethical principles. Clinical practice is fraught with problems that cannot be solved without the intervention of bioethics. One of the long-standing problems is euthanasia.