Diagnosis is the process of identifying a disease or condition based on a person's symptoms, medical history, and test results. Healthcare professionals, such as doctors and nurses, use various methods, including physical examinations and laboratory tests, to gather information about a patient's health. This information helps them determine the underlying cause of the symptoms. Once a diagnosis is made, it guides the treatment plan and management of the condition. Accurate diagnosis is crucial, as it can significantly impact the effectiveness of the treatment and the patient's overall health outcomes. Early and correct diagnosis can lead to better recovery and quality of life for patients.