functionalBethan GrantApril 17, 2023 A functional problem is one where there is no underlying cause. Another word for it is idiopathic Related Articles: Glossary: Arash TaghizadehToilet training and school readiness in the newsJuliette Rayner, CEO of ERIC, explains why parents need support, not shaming, to help children who start school unable to use the toilet independently.Daytime bladder problems – what to do when problems persistChildren's daytime bladder problems, what to do, what help your doctor can offer and what treatments are available.Overactive bladdersERIC Conference 2026