SMALL redworms are the most common and one of the most dangerous parasites. Small redworms have a very short lifecycle, often as short as five or weeks, however, they reproduce in very large numbers.

Almost all small redworms go through a unique stage in their lifecycle. As larvae they burrow into the gut wall of the large intestine and become encysted. Some of the larvae will develop in the gut wall for a period of time before re-emerging to become an adult, egg laying worm in the large intestine.