What is constipation?

Have you ever needed to go for a poo or wee, but have struggled to go to the loo?

Well you're not alone, around 1 in 3 children in the UK have experienced constipation, and it can make some kids quite ill if they don't get medical help.

Nina spoke to Brenda Cheer who is a children's nurse who works for the children's bladder and bowel charity ERIC, to understand why constipation affects so many children, and how we can help.