A theory turned into a treatment plan
After David Reimer’s infant surgery left his penis severely damaged, psychologist John Money advised his parents to raise him as a girl. Money believed that a child’s gender identity could be shaped decisively through upbringing, especially if reassignment happened early. Reimer’s case became a test of that belief—not in a laboratory, but through decisions that reshaped a child’s body, name, and daily life.
Reimer was given the name Brenda and underwent further medical treatment as part of the reassignment. Adults around him were expected to reinforce the new identity, while he was not told the full story of what had happened. The arrangement depended on more than a label: it required his family and clinicians to manage what he knew and how others treated him.
The person did not fit the theory
Reimer did not feel at home being raised as a girl. When his parents eventually told him the truth, he chose to live as a man and took the name David. His experience showed the limits of treating identity as something adults could reliably produce through upbringing and medical intervention.
Money presented the reassignment as successful, but that account obscured Reimer’s distress and rejection of the identity imposed on him. The case is not a controlled experiment: it involved one person, an unusual medical injury, and many overlapping experiences. It cannot settle every question about how gender identity develops. But it sharply undermined the confidence that a child’s identity could simply be redirected by assigning a different sex and raising the child accordingly.
The cost of making a person the test
The damage was not only physical. Reimer had to live inside a decision made by adults who believed their theory justified concealing the truth and directing his development. His story remains a warning about the difference between studying a hypothesis and acting on it: when the subject is a child, a mistaken theory can become the conditions of that child’s entire life.
