It's worth noting that while Spironolactone can be used to suppress testosterone, that's not really what it's used for. Rather it weakly blocks androgen receptors so it makes the body act like the testosterone isn't there or is lower than it actually is. And this is effective at a far lower dose than the testosterone "suppression".
This is why it's sometimes prescribed to women for hair loss, improper hair growth, and/or acne.
It's for that purpose that it's normally prescribed in trans healthcare and it's generally only temporarily (~3-9 months) prescribed while an estradiol regimen suppresses testosterone production. After that it can be dropped with the estradiol doing the rest of the work.
And outside the US it's far less commonly prescribed for this purpose with other androgen antagonists generally being preferred but US doctors tend to be more weary of those other medications and therefore prefer spironolactone.
So while said kid may be a bit "weird" in your eyes, nothing about this really seems unusual. At worst they probably just need to ask their doctor to prescribe a different androgen antagonist instead of spironolactone.
It reminds me of a friend I have who is quite severely depressed and has gone through a wide range of sexual identities. Straight, to asexual, then gay, then polyamorously bisexual, and now back to monogamously straight. Each change she excitedly explained to me that she had unlocked some deep secret to her identity and now her whole life made sense. This happened well into her adult years, not adolescence.
Some people seem to have a strong sense of a "missing piece" in their lives, and might be susceptible to latching on to almost any identity or community if it can explain that feeling.
EDIT: Because of the current barrage that trans people are under, I should clarify that I know trans people who have a deep and abiding certainty that their gender is different from what it says on their birth certificate; my above comment is not meant to include those people.
My trans friend in college suffered terribly because her mother disowned her. I can say as a parent though, if I saw my child was involved with people who were as hateful and negative as the trans people I see on Mastodon, I'd think "I'd do anything at all to spare my child from that suffering."
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I think "asexual", as a fashionable label, is particularly harmful. I've met a lot of people who are definitely sexual who went on a phase of glomming on to it and it certainly contributed to their misunderstanding of themselves.
The proliferation of labels about sexuality seems harmful to me (polyamorous is another, BDSM people introduce 10s of them, like you couldn't possible be articulate about your desires but you imagine there is some place where you can pick them off a menu)
My recent experience is that when something squicky goes down or a paraphilia rears its ugly head the people you can trust the least are the ones who talk about sex as if they were liberated or who claim to have some subaltern identity. I think people like this are dangerous not just as direct social connections but even if they are 2, 3 or 4 steps removed.
This classic of French theory
https://monoskop.org/images/9/96/Baudrillard_Jean_Seduction....
has a great part near the beginning about how glib talk about sexuality is a trap, not a way to liberation.
But lots of non-gender-related online communities also look like that to me: some political groups, antiwork, etc.
People have done this all the way back time eternal, the only thing that's different today is that people are allowed to be more open about it and that there are many discrete labels that allow people to easily describe what they are specifically feeling.
I don't think a gender transition will make this person whole, this person will just be a weird person who is also trans. The old problem will persist but now he (maybe she or something else later) will have additional side effects and other baggage not to mention lost opportunities such as not being able to be a father.
> not to mention lost opportunities such as not being able to be a father.
This isn't true. Even if you stay trans the entire rest of your life you can still often have kids. This goes for trans women, trans men, and nonbinary people. Generally at worst you'd just need to supplement with some hormones to support fertility but often even that isn't necessary.
But supposing someone de-transitioned, fertility generally returns completely or near completely within 6 months to a year.
The only case where you can't "undo" any degree of loss of fertility is with an orchiectomy (testicle removal) but even then the standard procedure is to preserve sufficient semen in cold storage for future use.
My son has two friends. One fell under the spell of blackpill incels, thinks he is not tall enough even though he's an inch above the mean, wants to break his legs to extend them and get taller, hasn't talked to my son for two years because my son said what his real height was in an online chat. Rumor has it he's taken anabolic steroids (but hasn't done any weighlifting or athletic training.)
The other fell under the spell of a self-described "egg-hatcher" who "aggressively" (his friend's word) worked on him for a year and a half to convince him that his being out of sync with other people was a sign he was trans. I knew him pretty well as an elementary school student and he didn't give any sign of variant gender identity then, although like my son and myself he was always a little 'weird'. (He uses a different pronoun and name at his job but tells us it is OK for us call him 'he' and use his own name so we do.) He's taking a cocktail of drugs that gets prescribed via telemedicine and was telling us about the serious side effects he was suffering: one of these drugs, spironolactone, is primarily a drug that alters your mineral metabolism but has the effect of suppressing testosterone if you take 20x the normal dose. (My doc gives it to me for my blood pressure.) He has insatiable cravings for salt as a result.
I completely believe my transsexual friend from college is for real. I believe my son's transgender friend is making a mistake; I support him as an individual and feel I owe him a lot as a person I knew from a young age but I believe he's a victim of a cult-like movement, as is my son's first friend.
(Note a lot of Christian people are brought into it by their family before they're able to make a choice by their own judgement)