Page 140 - Primary Five Science

The sphincter muscle may be irritated by some foods or weak-

ened by some lifestyle habbits.

Intestinal Worms

These are parasitic worms that feed on our food in the intes-
tine. If their population grows much they cause abdominal

Worms are the commonest problem among children and

adults. They come with the unclean food we eat.

Below is a colonoscopy of a person infected with worms. In a colonosco-

py, a tube with a camera is inserted into the rectum via the anus to see

the health state of the colon.

Worms can be avoided by eating clean food, washing hands be-

fore handling food and deworming regularly (3 months or as

advised by doctor)