The Full Form of LAMA is Leave Against Medical Advice.

When a patient leaves AMA, the patient is leaving before their treating physician recommends discharge or despite medical advice to the contrary.

This definition implies the patient received and understood the medical advice given. In practice, the term AMA is often used regardless of whether medical advice was given or not. Additionally, patients are frequently required to sign an AMA form. Unfortunately, these attestation forms are often confusing, coercive, and written in language beyond the reading level of the patient.