Roundworms are the most common parasites found in the gut of children. The worms are pink and smooth and measure about 25 cm long. They look like pale garden earth worms.
Roundworms produce thousands of eggs a day which are passed in the child’s stool (faeces). The eggs have a very characteristic shape and can be easily recognised if a sample of stool is examined under a microscope.
Roundworms are common in children between the ages of 1 and 5 years.
Roundworms are the most common bowel parasite in many poor countries.
The roundworm is Ascaris lumbricoides. Infection with roundworms is called ascariasis.