Anyway infertility isn’t a disease so I don’t think anyone should be getting free IVF on the NHS.
Infertility can be the result of cancer, its not unusual for young people about to undertake treatment to have sperm / eggs frozen for a later date.
PCOS, fibroids, endometriosis, anemia are all diseases, thyroid and liver problems can also interfere with a womans ability to conceived some of these will be resolved by drugs rather than IVF.
So I don't have a big issue with fertility investigation being on the NHS, nor do I have an issue with IVF being used.
I think it would be pretty shit to be the Doc to tell a 20 year old, you have cancer, we think we have it early enough, treatment will make you infertile, we can store your sperm / eggs but you'll need to fund IVF yourself later.