Medical ethics is a set of principles that guide healthcare professionals in making decisions about patient care. It helps ensure that patients are treated with respect, dignity, and fairness. Key concepts include autonomy, which emphasizes a patient's right to make their own choices, and beneficence, which focuses on acting in the best interest of the patient. Another important aspect of medical ethics is justice, which ensures that healthcare resources are distributed fairly among all patients. Additionally, non-maleficence reminds healthcare providers to avoid causing harm. Together, these principles help create a moral framework for delivering quality healthcare.