What happens during an incarcerated hernia?

During an incarcerated hernia, the contents of a hernial sac, usually part of the intestine, become trapped and cannot return to their original position. This entrapment leads to a blockage where the intestines cannot pass through the affected area, causing an obstruction. The key aspect of this condition is the inability of the herniated tissue to move back into place, which can result in compromised blood flow to the affected area and also lead to further complications if not treated promptly.

Other responses do not accurately depict what occurs in an incarcerated hernia. Intestinal peristalsis may not necessarily increase significantly; rather, it can be diminished or stopped due to the obstruction. Surgery-related enlargement of the stomach does not pertain directly to hernia incarceration, and ulceration in the anal canal is unrelated to the mechanics of an incarcerated hernia. Therefore, understanding how internal structures become obstructed is fundamental in recognizing the significance of an incarcerated hernia and its potential complications.