Meckel’s diverticulum – a small bulge in a shape of the bag, located near the lower end of the small intestine – is a congenital disorder (i.e. a disorder present from birth). It occurs in 1 person out of 50, although more than half of the cases are without symptoms.
Meckel’s diverticulum is like a appendix – that is, it becomes significant only after it is inflamed. The symptom of this disorder is a severe bleeding from the intestine. Pain and vomiting may also occur.
Inflammation of the diverticulum may in some cases be diagnosed as an appendicitis (with additional complication, peritonitis – or without it), even as a perforated duodenal ulcer. But that does not matter, since in all these conditions the surgeon will first open the belly. The surgeon will then determine the true source of symptoms, so by removing Meckel’s diverticulum (with the treatment of peritonitis, if needed) he will heal the disease.