Also known as Hesselbach’s triangle, the triangle is bordered on the outside by the inferior abdominal wall artery, on the inside by the lateral border of the rectus abdominis muscle, and on the bottom by the inguinal ligament. Here the abdominal wall lacks complete abdominal muscle coverage and the transversus abdominis fascia is weaker than the surrounding portion, making it susceptible to herniation. The inguinal hernia protrudes from back to front here, so it is called the rectus hernia triangle. The inguinal hernia triangle is separated from the deep inguinal ring by the inferior epigastric artery and the interosseous ligament, and the inferior epigastric artery can be used as one of the markers to differentiate between direct and oblique hernias during surgery. Inguinal hernias occur most often in the elderly, usually do not enter the scrotum, and rarely become incarcerated and require surgical repair.