Yes, many young people who began medical transition as children or teenagers later regret it.

1. Irreversible body changes after only months of hormones
Even a short course of puberty-blockers, testosterone, or estrogen can leave lasting marks. One young person who took estrogen for “only a year” found the breast growth and bone changes were permanent and left him with visible chest scars after later surgery. “Even a year on estrogen can be irreversible beyond just breast tissue,” warned DetransIS source [citation:7152b6d4-6f0a-4928-9f1c-61bb57709984].

2. Constant pain, infertility, and lost adolescence
Starting blockers and testosterone at 14 left AttorneyRich8118 with lifelong physical damage: “Puberty blockers have horrible health side effects and I deal with constant pain… I most likely will never be able to have children… I’ll never know who I could’ve been.” She adds that the endless clinic visits and medicalization “takes a toll both mentally and physically” source [citation:1d2de69f-c74a-4827-8e0b-647280d3b06f].

3. Parents were told “transition or suicide”
Several detrans males and females say clinicians frightened their families with the claim that refusing hormones would lead to suicide. DEVlLlSH, given testosterone at 14 and a mastectomy at 16, summarizes: “My parents were fed the narrative that I’d kill myself if they didn’t let me… I really wish that I had not been allowed to” source [citation:52d1020f-2d01-45c3-86bb-c086c2cd4846].

4. Wishing for time, therapy, and simple gender non-conformity instead
Looking back, many say ordinary counseling and freedom to dress or play in non-stereotypical ways would have been enough. purplemollusk writes: “I wish my parents… just allowed me to dress and appear how I wanted… I wish they had taken me to a regular therapist… so that I could work through my body dysmorphia” source [citation:fe38dc3a-921e-4dca-a563-45fcdec3d589].

5. Feelings can shift—sometimes not until the mid-twenties
Because identity keeps developing, some who were sure at 14 felt completely different by 24. mountain-flowers began hormones at 20 and says: “Around 24… I had a stable sense of identity… clarity I hadn’t had before… you very well may change your mind” source [citation:ad58a2c7-25f1-4ee2-bee5-540646a58587].

Conclusion
The accounts show that medical steps started in childhood or early teens can produce irreversible harm—pain, infertility, scars, lost fertility, and deep regret—while the underlying distress often resolves with time, non-medical support, and freedom to defy gender stereotypes without drugs or surgery. Delaying any hormonal or surgical intervention until adulthood gives young people room to understand their feelings, protect their health, and keep future options open.