Content warning: there's some offensive and transphobic language in this post
The term I think you mean to use is “Medically Necessary”. Whether a medicine or procedure is medically necessary is a question best left to the patient and their doctors.
Every person’s experience is different; there isn’t a universal answer to this question. Further, there are different ways to interpret the question which can lead to vastly different answers.
I carefully cultivated masculine traits and interests to prove my masculinity and thereby disprove that I had any femininity.
I suppose it’s like socks — for the most part, we put them on and forget about them, and everything is fine, until it isn’t.
Not identifying with your assigned gender is one of the worst feelings I’ve ever suffered. I have never experienced any amount of physical pain which even comes close to the psychic pain. You don’t fit in. You might not even know why. You feel different, but don’t have any words to describe how or why.