Medical diagnosis is the process by which a healthcare professional identifies a disease or condition based on a patient's symptoms, medical history, and diagnostic tests. This process often involves gathering information through physical examinations, laboratory tests, imaging studies, and sometimes biopsies. The goal is to determine the underlying cause of a patient's health issues to provide appropriate treatment. Once a diagnosis is made, it guides the treatment plan and helps in monitoring the patient's progress. Accurate diagnosis is crucial for effective management of conditions such as diabetes, hypertension, or cancer. Early and correct diagnosis can significantly improve patient outcomes and quality of life.