Pinworm & Threadworm
Threadworms (pinworms) are tiny worms in your poo. They're common in children and spread easily. Read more
They usually cause extreme itching around the anus or vagina, particularly at night.
Irritability and waking up during the night is common, but don't panic. You can treat them without seeing your GP, everyone in the family needs to be treated, even if they don't have symptoms.