Entering the body by means of eggs dirt or dust accidently ingested roundworms soon hatch eventiually find their way to the intestine. Once there they latch on to the intestine wall in order to eat some of the food which passes by. While doing this, the adult roundworms lay up to 80,000 eggs which are then excreted in the feces and thus to the soil. Although usually reaching maturity in the stomach, they may reach it in the intestines or find their way to other organs.
The roundworm has evolved to be almost indetectable to the body's immune system, excreting a mucus coat designed to mimic the host's protein signature. They also attach to the intestine by means of a sucker like device which does not irritate the lining at all. Problems arise when the population grows to such a size that, cancer-like, it puts pressure upon the other organs, damaging them and thus their host.
Entering the body by means of eggs dirt or dust accidently ingested roundworms soon hatch eventiually find their way to the intestine. Once there they latch on to the intestine wall in order to eat some of the food which passes by. While doing this, the adult roundworms lay up to 80,000 eggs which are then excreted in the feces and thus to the soil. Although usually reaching maturity in the stomach, they may reach it in the intestines or find their way to other organs.