Inguinal hernias occur when abdominal organs move into the inguinal canal where they may become [[Hernia|incarcerated]] or [[Hernia|strangulated]]. A true [[Hernia|hernial sac]] is formed by the parietal peritoneum or the tunica vaginalis. In entire male animals, the inguinal canal is continuous with the scrotum and abdominal organs may reach this location when herniated.