Hernias are classified by location and can be inguinal, umbilical, incisional, or hiatal. Main symptoms include bulging or pain at the hernia site. Without treatment, hernias risk becoming incarcerated, which can lead to obstruction or strangulation of intestinal tissue. Physical examination is used to diagnose hernias, while surgical repair is the typical treatment. Nurses monitor for complications and provide pain management, education, and support to hernia patients.