Chloe Cole is a young California woman who underwent puberty blockers, cross-sex hormones, and a double mastectomy between the ages of 13 and 17, all under the advice and supervision of doctors at Kaiser Permanente. 

Today, she is a detransitioner, and her medical malpractice lawsuit against Kaiser Foundation Hospitals is among the most closely watched detransitioner lawsuits in the country. This page is the official case resource for Chloe Cole v. Kaiser Foundation Hospitals: her story, the status of the Chloe Cole lawsuit, and how other detransitioners can get legal help.

Who Is Chloe Cole?

Chloe Cole is a California-born detransitioner, author, and public advocate. She was raised in the Central Valley and began experiencing gender dysphoria at age 9. Between 13 and 17, under the care of Kaiser Permanente providers, she was placed on puberty blockers and testosterone and underwent a double mastectomy at 15.

At 16, she stopped her medical transition. She has since become one of the most visible voices in the national conversation about medical care for minors with gender dysphoria, testifying before state legislatures, speaking at rallies, and working with the Center for American Liberty and her legal team to pursue justice through the courts.

Today Chloe is an adult woman. She is also the named plaintiff in Chloe Cole v. Kaiser Foundation Hospitals, a case that could reshape how American medicine treats gender-dysphoric minors.

What Happened: Chloe’s Story

Imagine that you are the parent of a daughter who, starting at 9, suffers from gender dysphoria. By 12, her distress is serious enough that you turn to medical professionals — professionals you think you can trust.

But it turns out they have a protocol. They aggressively promote a “gender transition” strategy. For the next three years, you watch as they put it into practice: puberty blockers at 13. Off-label testosterone. And, at 15, a double mastectomy. All under their direct advice and supervision.

The whole time, the Cole family says the providers never informed them of the mainstream psychological and psychiatric alternatives to medical transition — alternatives well documented in the clinical literature. Instead, the Coles say, they were presented with a false binary: cooperate, or bury a child. “Would you rather have a dead daughter or a live son?”

Chloe’s gender dysphoria eventually resolved without the medical protocol her doctors had prescribed. But the harm from that protocol is permanent.

“My teenage life has been the culmination of excruciating pain, regret, and most importantly, injustice,” Chloe said. 

“I have been emotionally and physically damaged and stunted by so-called medical professionals in my most important developmental period. I was butchered by an institution that we trust more than anything else in our lives. What is worse is that I am not alone in my pain. It is impossible for me to recoup what I have lost, but I will ensure no other children will be harmed at the hands of these liars and mutilators.”

The Lawsuit Against Kaiser Permanente

On February 22, 2023, Chloe Cole filed a medical-malpractice lawsuit in San Joaquin County Superior Court. The defendants are Kaiser Foundation Hospitals, the Permanente Medical Group, and individual Kaiser-affiliated providers who treated her for gender dysphoria when she was a minor.

The complaint alleges that the defendants rushed Chloe into irreversible hormonal and surgical treatments without adequate psychological evaluation, did not meaningfully disclose the risks of puberty blockers and testosterone, and did not inform Chloe or her parents of non-invasive alternatives — conduct her attorneys argue falls below California’s medical standard of care (Cobbs v. Grant, 8 Cal. 3d 229). 

Chloe’s documented injuries include joint pain, impaired bone density, recurrent urinary tract infections, and lasting nerve damage from the mastectomy.

Chloe is represented by the Dhillon Law Group and LiMandri & Jonna LLP, with litigation support from the Center for American Liberty. Her legal team is pursuing both compensatory and punitive damages.

Case Timeline & Status 

The Chloe Cole lawsuit has moved through several significant procedural milestones. The Dhillon Law Group and LiMandri & Jonna LLP filed a Notice of Intent to Sue on November 9, 2022, and Chloe formally filed her complaint in San Joaquin County Superior Court on February 22, 2023. 

Kaiser moved to compel arbitration; in April 2024, Judge Robert Waters denied that motion and, later that month, on April 18, 2024, Chloe’s attorneys filed a motion to amend her complaint to add a claim for punitive damages. 

Kaiser appealed the arbitration ruling, but on September 19, 2025, the California Court of Appeals affirmed the trial court’s decision, clearing the way for the case to proceed in open court.

As of April 2026, the case is in pretrial proceedings in San Joaquin County Superior Court. The punitive damages motion filed in April 2024 remains pending before the court, and a trial date has been set for April 5, 2027.

Punitive Damages Motion

On April 18, 2024, Chloe’s attorneys filed a motion to amend the complaint to add a claim for punitive damages. The motion asks the court for leave to allege that Kaiser providers acted deliberately, fraudulently, and maliciously in pushing Chloe through medical transition. 

The motion is supported by sworn declarations from Chloe herself, her attorneys, and six medical experts, including Drs. Robin A. Dea, Nathan Szajnberg, Michael Laidlaw, John Perrotti, and Stephen B. Levine.

In her declaration, Chloe wrote: “While medical professionals around the world wake up to the atrocities committed against children, the ‘doctors’ that destroyed my childhood continue to lean into their sick experiments. It is clear these butchers will not stop until they pay for what they have done. This is the next step in holding them accountable.”

Charles LiMandri, partner at LiMandri & Jonna LLP, added: “Chloe’s motion for punitive damages, backed by expert testimony and supported by California law, is a vital step in seeking justice and deterring such reprehensible conduct.”

The motion remains pending.

Related Cases

Chloe’s case is part of a wave of detransitioner lawsuits now moving through American courts — roughly 28 as of early 2026, per journalist Benjamin Ryan’s ongoing tracking. 

In the first of these to reach a verdict, Varian v. Einhorn (Westchester County, N.Y., Jan. 30, 2026), a jury awarded detransitioner Fox Varian $2 million against a psychologist and plastic surgeon for inadequate screening and informed-consent failures before a double mastectomy at 16. “This gives me even more hope that I will get justice for myself,” Chloe said of the verdict.

Two additional cases the Center for American Liberty is actively litigating:

• Hein v. University of Nebraska Medical Center — Luka Hein alleges she was rushed into a double mastectomy at 16. Filed September 2023; trial expected in 2027.
• Regino v. Staley — Aurora Regino alleges her daughter’s California school district facilitated a gender-identity transition without her knowledge. The Ninth Circuit vacated the district court’s dismissal on April 4, 2025; CAL filed her opening appellate brief on March 6, 2026.

How to Get Help

The fight for Chloe — and for every child being steered toward irreversible medical transition — is only possible with support. The Center for American Liberty is a 501(c)(3) nonprofit. Donate to support Chloe’s case →

If Chloe’s story sounds like your own story, and you want to take a stand too, lawyers at the Dhillon Law Group and at LiMandri & Jonna LLP want to hear from you.