(Sorry I am essentially recycling my post from the Biology is not Bigotry thread and www.mumsnet.com/Talk/womens_rights/3313537-Sex-vs-Gender-in-medicine-and-health-care , but here goes):
The NHS Is not giving people accurate health information because the TRA dogma must always be appeased.
So if you consider what is a vagina and what is a penis. What these organs are and what they can normally do. The physical systems that they are part of, which contribute to why they do what they can do. Keep that understanding in your mind.
Then look at the NHS Choices pages on gender dysphoria:
www.nhs.uk/conditions/gender-dysphoria/treatment/
If you scroll right down to the section about biologically male adults having surgery, it says: eg
The vagina is usually created and lined with skin from the penis, with tissue from the scrotum (the sack that holds the testes) used to create the labia. The urethra (urine tube) is shortened and repositioned. In some cases, a piece of bowel may be used during a vaginoplasty if hormone therapy has caused the penis and scrotum to shrink a significant amount.
It continues that:
The aim of this type of surgery is to create a functioning vagina with an acceptable appearance and retained sexual sensation. 
It goes on to say, equally untruthfully, that a ‘functioning penis’ can be made out of surgically altering a biologically female person’s body.
Note: this is my use of quotation marks, not that of the NHS. They don’t use quote marks to show that these surgeries create a ‘simulation of’ other organs- NHS Choices says you will get a functioning penis or functioning vagina. Except everyone knows that the results of these surgeries aren’t these organs, nor do they ever ‘function’ at all like naturally-occurring sex organs.
For example- The only ‘functioning’ the described surgically-created ‘vagina’ is capable of, that might be vaguely similar to a real vagina, is a capability of being penetrated.
But without any of the natural vaginal musculature or in physical structure, natural lubrication and protective flora or the similar level of physical sensation involved.
As if capacity for penetration was the only necessary activity or definitive ‘function’ of vaginas.
It’s all so reductive about what female sex organs are for and can do.
It is also misleading people about what they will end up with, after having had hugely invasive permanent surgeries.
Why are people not being told the truth?