Kingdom (biology) In biology, kingdom (Latin: regnum, plural regna) is the second highest taxonomic rank, just below domain. Kingdoms are divided into smaller groups called phyla.
Pinworms symptoms in children. 1. An itching around the anus, which may become worse at night on getting the female worm depositing her eggs. It causes problem during sleep of infected child. An intense itching causes inflammation on the skin.
From there, female pinworms migrate out of the child's intestines to lay their eggs on his anus. As the worms move, they cause intense itching that can disrupt sleep. When the child scratches his itchy bottom, the eggs get under his fingernails, and another cycle begins when he puts his hands in his mouth.