A bowel loop is a functional obstruction of the intestines that prevents the normal transit of the products of digestion. The problem can occur at any level distal to the duodenum of the small intestine. When it occurs, it's always a medical emergency and may require to be treated surgically.
1 Additional Answer
Bowel loops can also be referred to as bowel obstructions or intestinal obstructions,and are the functional and mechanical obstructions or loops of the intestines. They prevent the product transit of digestion.