There are some adults suffering from gender dysphoria that makes them feel like they are trapped in someone else’s body resulting in unhappiness, anxiety and discomfort. Gender identity is innate. Studies show brain similarities in dysphoric individuals with cross-sex individuals. Denying a person’s innate gender identity is a human rights abuse. In such a situation, individuals often have a desire to live according to their gender identity and thus، undergo a gender reassignment surgery which permanently alters one’s sex to their desired sex identity.
What Is a Sex Change Surgery?
Sex reassignment procedure has become popular. Many of the public and commercial health insurance plans provide defined benefits covering such surgeries. The reassignment primarily includes Genital Reconstruction Surgery (Male to Female and Female to Male), Chest Reconstruction (Female to Male), Breast Augmentation (Male to Female) and Hysterectomy (Female to Male).

Realistic expectations from a sex change surgery
Gender change is not a short-term procedure. While the surgery lasts only a few hours, the duration for a complete sex change, in both psychological and physical terms, can take up to a few years. Gender is a prime identity of any individual, it defines his/her preferences, lifestyle, habits, and so on. Hence, the decision to undergo the surgery should be taken with much consideration.
While more than 97% individuals undergoing the surgery find gender reassignment results satisfactory, it is best to be sure about the resulting effect of the treatment before undergoing it.
Since the surgery is irreversible and lasts for a lifetime, you should consult in detail with your doctor whether you are an ideal candidate for the surgery.
This procedure is ideally suited for two types of individuals; for those who were not biologically assigned a gender at birth, or those who do not feel comfortable with their current sex. Generally, such people do not wish to be associated with the gender that they biologically posses or have a gender dysphoria.
Cons
Researches on gender dysphoric children indicates many children align with their biological sex.
Suicide is extremely rare in prepubescent children.
Destruction of the diversity of expression of the gay and lesbian community (and increasingly bisexuals/heterosexuals with childhood/teen GD (see here and here and here) if this population becomes over-medicalized. Regretteres have mental health issues as well.
There are unknown impacts of reality perception of social transition on very young children.
The patient who has undergone the surgery from male to female or vice versa, will be unable to reproduce.
The patient will not only have to face physical changes but also psychological changes which may be hard to deal with.
This procedure’s side effects can include hematoma. Small hematoma can be cured through puncture and the larger one needs the patient to undergo surgical treatment.
Nipple necrosis is a Complication that may arise after a gender reassignment surgery. The patient can undergo aesthetic procedures which can reconstruct the nipples.
Pros
There is a case of a dysphoric youth transitioned so young that they are completely dissociated from the reality they are even trans.
Social transition of young children improves mental health in a population with high suicide ideation.
Youth social and medical transition may possibly improve long-term adult mental health in the trans community, a population with high rates of mental illness currently.
Not accommodating a social transition violates the child’s autonomy, is psychologically abusive, and conversion therapy against the trans community. It’s a human rights abuse.
Social transitions relieve anxiety and depression in the moment and are reversible if the child changes his/her mind. Childhood stress has long-term effects on children as they get older.
Social transition allows the child to be their true self.
Social transition creates a culture of trans and genderfluidity societal acceptance
Social transition makes gender dysphoric prepubescent children happier. Depression in childhood can negatively impact development and can have lasting effects.
Parents socially transitioning more children will create more community and support for trans youth.
Hormone Blockers at Puberty Onset
Puberty blockers reduce stress in the youth.
Medical transition has been shown to improve mental health in most studies and in some to reduce suicide risk.
Children can make decisions about giving up their fertility. Sterilized trans youth can adopt. Many trans people do not have children anyway.
A patient who undergoes a sex reassignment procedure is able to enjoy her sexual life in the future as she/he does not have to deal with the mental stress of being in the wrong body.
Finding the right doctor and getting the desired treatment can lead to psychological happiness for the patient.
With medical tourism rising, the treatment is cheap in a few destinations.
After the gender reassignment surgery, the patients are usually found to be less gender dysphoric. They will have less anxiety levels and depression levels etc.. than before.
http://www.medhalt.com/procedure/sex-change-surgery
https://iraniansurgery.com/en/advantages-and-disadvantages-of-sex-reassignment-surgery/
https://www.genderhq.org/trans-youth-rights-moral-dilemmas-gay-desistance