Roundworm Reproduction
Roundworms reproduce sexually. Sperm and eggs are produced by separate male and female adults. Fertilization takes place inside the female organism. Females lay huge numbers of eggs, sometimes as many as 100,000 per day!
Do roundworms reproduce in humans?
They cannot reproduce inside you. There will only be as many as the eggs you first ingested (see causes of roundworm infection for more information about the life cycle of the roundworm).
Where do roundworms lay their eggs?
The eggs hatch in the small intestine, and adult worms live in the large intestine. The pregnant female worms move to the anus and deposit large numbers of eggs in the skin around that area.