This document provides guidance on performing a thorough patient history. It outlines the key components of a patient history, including chief complaint, history of present illness, past medical history, drug history, family history, and social history. The importance of obtaining an accurate history is emphasized as it allows the healthcare provider to determine the etiology of the patient's problem. Guidelines are provided on how to conduct each part of the history respectfully and obtain relevant information through active listening and open-ended questioning.