Patient history is a comprehensive record of a patient's past and present health information. It includes details about previous illnesses, surgeries, medications, allergies, and family health history. This information helps healthcare providers understand the patient's overall health and make informed decisions about their care. Additionally, patient history often covers lifestyle factors such as diet, exercise, and substance use. It may also include information about vaccinations and any chronic conditions the patient may have. Collecting accurate patient history is essential for diagnosing and treating medical issues effectively.