Medical ethics is the discipline of deciding what ought to be done when medicine has several possible actions, competing values, incomplete information or unequal consequences.
Scientific evidence can tell us what is likely to happen. Ethics helps decide what should happen.
Evidence and Ethics Have Different Jobs
A treatment may reduce disease risk, but that does not by itself answer whether the burden is acceptable, whether the patient wants it, whether resources should be used in that way or how competing harms should be weighed.
See What Is Medical Evidence?.
Autonomy
Patients should be able to participate meaningfully in decisions about their care where they have the capacity to do so. Respect for autonomy requires information, understanding and freedom from inappropriate coercion.
Benefit and Harm
Medicine aims to benefit patients and avoid unnecessary harm, but interventions often create both. The ethical problem is not to demand zero risk. It is to judge whether expected benefit justifies expected harm in the context of alternatives and patient goals.
Fairness and Justice
Healthcare resources are finite. Ethical decisions may therefore involve access, prioritisation, equity and the fair distribution of burdens and benefits across individuals and populations.
Professional Duties Matter
Healthcare professionals have responsibilities that go beyond technical skill: honesty, confidentiality, appropriate competence, respect, accurate documentation, safe handover and escalation when a patient’s interests require it.
Uncertainty Does Not Remove Ethical Responsibility
Clinical decisions are often made before certainty is complete. Ethical practice requires uncertainty to be communicated honestly and managed proportionately rather than hidden.
Capacity, Best Interests and Surrogate Decisions
When a person cannot participate fully in a decision, medicine may need structured approaches involving capacity assessment, prior wishes, legally recognised decision-makers and best-interests reasoning under the applicable jurisdiction.
The deeper canonical owner is The Clinical Ethics, Consent & Decision Capacity Web.
Confidentiality and Information
Clinical information is necessary for care but sensitive by nature. Ethical handling involves limiting access appropriately, preserving accuracy and balancing confidentiality with legally or clinically justified disclosure where relevant.
Ethics and Patient Safety
A system that predictably exposes patients to avoidable harm has an ethical problem as well as a technical one. Safety, transparency and learning from error are therefore ethical responsibilities.
Ethics and Guidelines
Clinical guidelines can organise evidence and recommendations, but individual decisions still need judgement about applicability, patient values, burden and context.
See What Are Clinical Guidelines?.
Canonical Medicine Route
Educational boundary: This article explains medical ethics conceptually. Legal and professional obligations vary by jurisdiction, role and clinical situation.