What kind of hernia is characterized by the protrusion of tissue through the abdominal wall near the umbilicus?

An umbilical hernia is specifically characterized by the protrusion of tissue through the abdominal wall near the umbilicus, or belly button. This condition occurs when a portion of the intestine or other tissue pushes through a weak spot in the abdominal muscles, creating a bulge in the area around the navel.

Umbilical hernias are commonly seen in newborns and can occur in adults as well, often related to factors like obesity or pregnancy. The terminology is important here, as it clearly differentiates an umbilical hernia from others. For instance, an inguinal hernia typically occurs in the groin area, while a hiatal hernia involves the stomach pushing through the diaphragm into the chest cavity. A femoral hernia occurs below the inguinal ligament and is less common, generally occurring in the groin area much like an inguinal hernia.

Thus, the term 'umbilical' distinctly directs attention to the belly button area, confirming the accurate identification of this particular type of hernia.