And as the Local Government Association (LGA), representing 400 councils in England and Wales, outlines to a House of Lords select committee how migration stretches community services, one midwife tells how the changes affect her.
For midwife Jayne Cozens, going to work these days is also becoming something of a geography lesson.
She has worked in Wisbech, Cambridgeshire, for 12 years, and her caseloads are containing increasing numbers of foreign nationals from across the globe.
Language and culture are becoming more of an issue, as Mrs Cozens' job becomes ever more multi-cultural and multi-lingual.
"It can be a challenge explaining to a 17-year-old English girl what an amniocentesis is, let alone to a teenager from abroad who doesn't speak the language," she says.
There are cultural issues, too, which midwives must handle in the course of giving their advice to non-UK nationals.
"Chinese families tend to sleep together in the same room and the same bed.
"Children, new baby, mum and dad are all together. It's what they're used to, so you go to a house and there's a couple of mattresses on the floor.
"But our advice in relation to cot death is for women to not sleep with their babies, so if you have the whole family in together then that presents a problem."
Mrs Cozens said that in the course of her work "you do learn a few words" but that this is not enough to clearly explain the full message.
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