This document provides information about hernia surgery. It describes the different types of hernias including inguinal, incisional, femoral, umbilical, and epigastric hernias. It discusses the common presenting complaints of a hernia such as a lump or pain and precipitating factors. The document outlines the process of examining a patient for a hernia including inspection, palpation, and tests like the cough impulse and Zeimann's technique to determine the type of hernia. It also provides guidance on examining other related areas like abdominal muscles and performing a full systemic examination of the patient.