Colorado lets voters directly decide on ban on gender surgery for minors

On November 3, 2026, Colorado residents will find a question on their ballots that has not been put to voters anywhere else in a Democratic stronghold in this way: should gender surgery for minors still be allowed? Proposition 135, officially the "Prohibit Surgeries for Treatment in Response to Minors' Perception of Sex or Gender Measure", would introduce the "Protect Children from Irreversible Sex Change Surgery Act". While comparable bans in the United States have so far always been enacted through state legislatures in Republican states, this time the decision lies directly with voters themselves, in a state that voted overwhelmingly Democratic in the most recent presidential election.

What exactly the proposal would regulate

The text of Proposition 135 is narrow and specific. The proposal would ban gender surgery for Colorado residents under the age of 18, and would also prohibit the use of state or federal funds—including insurance coverage and Medicaid reimbursements—to pay for such procedures for minors. Three categories are explicitly exempt from the ban: treatment of acquired physical or chemical abnormalities, treatment of people born with a medically diagnosed difference of sex development (DSD), and circumcision of boys. The proposal made it onto the ballot after its sponsors submitted nearly 165,000 signatures to the Colorado secretary of state on March 17, 2026—well above the required threshold.

A ban that would barely affect current practice

Perhaps the most striking fact in the entire debate is this: gender surgery for minors is already rare in the United States, and Colorado hospitals currently do not offer such procedures to minors. Journalists at Colorado Sun therefore note that, if passed, Proposition 135 would primarily serve as a legal safeguard against a practice that is not currently taking place—a signal and a guarantee for the future rather than an intervention in current healthcare provision. That does not diminish the symbolic significance of the vote: if the first traditionally Democratic state adopts such a ban through a popular vote, it would indicate that support for caution regarding medical transition care for minors is no longer confined to conservative electoral districts.

Counterargument: too broadly worded?

Supporters of the current policy, quoted by Colorado Newsline, warn that the proposal's wording could reach further than its sponsors claim and create confusion in practice about which procedures would still be permitted—with the risk that healthcare providers might also become more cautious outside the proposal's actual target. That is a reasonable criticism of legislation created through a ballot initiative, without the usual amendment process in a legislative body. However, the text of Proposition 135 itself explicitly identifies three categories that fall outside the ban, which somewhat reduces concerns about unintended collateral damage. That does not mean the underlying debate has been resolved: whether surgical procedures for gender dysphoria in minors have a demonstrable beneficial effect remains an open question. The American professional association of plastic surgeons itself stated in early 2026 that the evidence for gender surgery in minors is insufficient. An analysis of outcome data following this type of surgery shows that the long-term effects on mental health in particular have not been tracked systematically enough—a gap that will remain regardless of the outcome in Colorado.

Part of a broader American pattern

Proposition 135 does not stand alone. In 2025, the U.S. Supreme Court ruled in the Skrmetti case that states may ban medical transition treatment for minors. Earlier this year, the U.S. Supreme Court had already ruled that states may exclude transgender girls from girls' and women's sports, and as of October 13, 2026, Medicaid no longer covers hormones or surgeries as part of gender care for minors. Those earlier steps came from a court and a federal agency under a Republican administration. Colorado's referendum, by contrast, is a direct popular vote in a state not generally associated with that political camp—and that makes the outcome on November 3 more significant than its immediate practical impact on healthcare might otherwise suggest.

Sources

• Wikipedia, "2026 Colorado Proposition 135", accessed October 2026. en.wikipedia.org
• Colorado Sun, "Proposition 135: Colorado voters will decide whether to ban gender-related surgeries for kids", October 4, 2026. coloradosun.com
• Hoodline, "Colorado Proposition 135: Youth Gender Surgery Ban Explained", October 2026. hoodline.com
• Colorado Newsline, "Ballot measure to ban youth gender-affirming surgeries could disrupt other forms of healthcare", October 2, 2026 (archived version). web.archive.org