How is clinical classification of hernias?

Reducible hernia (contained viscus can be returned from the hernia to its normal domain spontaneouslyor w/manual pressure when pt is recumbent) Irreducible hernia (incarcerated [content of hernial sac are entrapped or stuck in the groin, very narrow neck, lumen of herniated bowel may become obstructed, no interference w/blood supply] or strangulated [intestine is tightly twisted/trapped, circulation arrested, life threat and emergency repair is needed]) Incarcerated or strangulated hernias are seldom in direct hernias, common in indirect, usually small intestine and can cause small bowel obstruction, sudden abdominal pain, vomiting, distention, in that case we doubt acute incarceration/strangulation hernia