It’s “gender dysphoria”, actually, you might be mixing it up with Body Dysmorphic Disorder (an entirely separate thing).

In terms of consensus, this is p much it right here, there’s nothing binding a given physician to these particular standards, but I’d say a majority of the medical community (at least here in the US) largely agrees that these are the best guidelines for handling anyone of any age dealing with gender dysphoria (or who might be), although obviously with minors, especially pubescent minors, there are additional considerations, but the general consensus seems to be that with proper counseling and consideration, making sure that the patient understands the weight of making permanent decisions about their body, and of course parental consent, giving minors who’ve been determined to likely benefit from medical transition (or even just treatment with puberty blockers, if nothing else) should not be barred from access to it, that proper care for people suffering from gender dysphoria can be potentially life-saving, and that trans youth especially should not be denied the care they need due to the political machinations of people who aren’t even related to them (and likely don’t actually have their best interests in mind).

Anyway, trans people medically transitioning has been occurring for well over a century now, it is not a new phenomenon, just one that has recently been noticed by the mainstream a lot more, and the statistics over that long period of time generally suggest that it is very important for the well-being of a substantial minority of the population.

The idea that is circulating in some circles currently that parents are somehow forcing their children to not conform to gender expectations based on their birth sex, or somehow inducing “gender confusion” in them, has no psychological or medical basis, and if it were to occur in some case, I’m sure the extensive counseling that youth undergo as per the standards of care would be able to find evidence of it (to my knowledge, I have never actually heard of a case like this, unless you count the tragic story of David Reimer being forcibly raised as a girl against his will after a botched circumcision, but that case was entirely one doctor’s unethical social experiment, and if anything actually demonstrates why gender dysphoria should be properly treated, as David always asserted he was a boy even against being told otherwise and forced to dress and behave as a girl, something that I’m sure many trans men can deeply relate to).

Doctors who oppose these standards of care (usually on almost solely political grounds) make up a minority of the medical community. It’s always important to remember that trans people people of all ages have existed for a long time without society falling apart at the seams, and will continue to do so. Don’t let the latest politicized othering of a vulnerable group confuse you.