Abstract
Consent forms the ethical and legal cornerstone of medical practice, reflecting respect for patient autonomy and the right to self-determination. In the Indian context, consent in medical treatment is governed by a combination of statutory provisions, constitutional principles, ethical guidelines, and judicial interpretations. This article examines the concept of consent with particular emphasis on its types—implied, express, and informed consent—and the essential elements that render consent valid, namely capacity, voluntariness, adequate disclosure, and understanding. It also analyses the legal age and competence for consent, with special reference to paediatric patients, emergencies, and surrogate decision-making. Through discussion of landmark Indian and international case laws, the paper highlights how courts have shaped the evolving doctrine of informed consent and clarified the responsibilities of healthcare professionals. The challenges of implementing informed consent in routine clinical practice, including issues of communication, informed refusal, and professional negligence, are critically discussed. The article concludes by emphasizing that consent is a dynamic process rather than a one-time event, and that strengthening consent practices is essential for ethical medical care, patient protection, and medico-legal safety of practitioners in India.