"congenital: physiological herniation through the umbilicus occurs during the 10th week of gestation and congenital umbilical hernias occur when there is incomplete closure of the anterior abdominal wall after the gut returns to the abdominal cavity"
"acquired: more common in adultsrisk factors: obesity, multiparity, ascites, large intra-abdominal mass"
"congenital: physiological herniation through the umbilicus occurs during the 10th week of gestation and congenital umbilical hernias occur when there is incomplete closure of the anterior abdominal wall after the gut returns to the abdominal cavity"
"acquired: more common in adultsrisk factors: obesity, multiparity, ascites, large intra-abdominal mass"
"Spigelian hernia"
"There is a high rate of strangulation and incarceration of bowel and Richter hernias are common. Bowel obstruction is common and can be also be complicated by bowel ischaemia."