The human whipworm is a round worm that causes trichuriasis when it infects a human large intestine. It is commonly known as the whipworm which refers to the shape of the worm; it looks like a whip with wider "handles" at the posterior end. The whipworm starts its digestive system process by consuming food where it breaks down into the digestive tract where it leaves through the mouth since the mouth is the only hole in the whipworm. The whipworm is very different than others. This is because it's digestive system takes place in its head which means it can't absorb food through the skin like the hookworm.