Injury guide

Hair Relaxers and Cancer in the Womb

Used a hair relaxer and have concerns about womb cancer? Ask your doctor about symptoms and your reports.

See If You Qualify

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Updated Oct 4, 202615 sources

This may apply to you if

  • List the chemical relaxer or straightener brands you used and your best use dates.
  • Have the report that names your cancer and the diagnosis date ready to discuss.
  • Ask a lawyer to check the product history, claim rules and filing time. The study’s use categories are not a claim cutoff.

What the public record says

These are cited sources. Their inclusion does not imply that they endorse People’s Justice or reviewed this page.

Mary M. Rowland · U.S. District Court, Northern District of Illinois · United States District Judge

Finding: The September 24, 2026 court notice schedules the first federal test trial for September 7, 2027. A scheduled test trial is not a payment date or a ruling that every claim succeeds.

Notification of docket entry, Document 2041 (opens in a new tab) · Sep 24, 2026 · Checked Oct 3, 2026

Che-Jung Chang · National Institute of Environmental Health Sciences, Epidemiology Branch · First-listed study author

Finding: The Sister Study analysis found an association between reported straightening-product use and later uterine cancer. The authors call for more research; the finding does not prove a product caused one person’s cancer.

Use of Straighteners and Other Hair Products and Incident Uterine Cancer (opens in a new tab) · Dec 8, 2022 · Checked Oct 3, 2026

The evidence and its limits

National Institute of Environmental Health Sciences · Journal of the National Cancer Institute · 2022

Sister Study analysis of hair products and uterine cancer

Design:
Cohort
Participants:
33,947 women aged 35–74 with a uterus at enrollment
Finding:
Reported straightening-product use was associated with later uterine cancer; the association was stronger in the study’s frequent-use group.
Main limitation
Observational data and self-reported use in the prior year; the authors call for replication and identifying the chemicals involved. It does not prove that a particular product caused one person’s illness.

Read the source: Sister Study analysis of hair products and uterine cancer (opens in a new tab) · Checked Oct 3, 2026

The short answer

What is uterine cancer?
It is cancer in the womb. NCI describes two main types. Ask your care team which type your report names. [12]
What signs should I discuss with a doctor?
Tell your doctor about unusual bleeding or pain. Symptoms alone do not show that you have cancer. Do not wait for a claim review to ask about care. [13]
How is it diagnosed and treated?
Ask your care team to explain the tests and reports. Your own type of cancer and health matter. A claim page does not choose a care plan. [14]
What does the research say about relaxers?
A study found a link with womb cancer. It did not prove the cause for one person. The finding is not a ruling about your product. [3]

What rules a case out

Not covered by this case

  • A research link does not prove a product caused your cancer.
  • Different womb tumors can need different care.
  • A frequency group in a study is not a legal acceptance rule.

The process

What happens next

  1. 01

    You answer a few questions

    About two minutes. Nothing is sent until you agree on the last step and press submit.

  2. 02

    A lawyer looks at it

    A lawyer at the firm reads your answers and checks them against the current case criteria.

  3. 03

    The firm decides and gets in touch

    If the firm takes your case, you get the terms in writing to read before you sign. You can always say no.

When it fits this case

  • List the chemical relaxer or straightener brands you used and your best use dates.
  • Have the report that names your cancer and the diagnosis date ready to discuss.
  • Ask a lawyer to check the product history, claim rules and filing time. The study’s use categories are not a claim cutoff.

Used a hair relaxer and have concerns about womb cancer? Ask your doctor about symptoms and your reports. Research and a claim each need their own review.

What is uterine cancer?

It is cancer in the womb. NCI describes two main types. Ask your care team which type your report names.

Cancer in the lining of the womb is called endometrial cancer. A tumor in other uterine tissue may have a different name. Do not treat a broad study outcome as the exact diagnosis in your own record.

What signs should I discuss with a doctor?

Tell your doctor about unusual bleeding or pain. Symptoms alone do not show that you have cancer. Do not wait for a claim review to ask about care.

NCI’s endometrial guide lists bleeding after menopause, discharge apart from periods and pelvic pain among signs to check. This list concerns one type of womb cancer. A doctor should assess your own symptoms and any other causes.

How is it diagnosed and treated?

Ask your care team to explain the tests and reports. Your own type of cancer and health matter. A claim page does not choose a care plan.

NCI explains that labs, scans and a tissue sample can help a doctor diagnose cancer. An abnormal lab result alone is not proof. Ask what each result means and which further tests, if any, your doctor recommends.

Keep care appointments separate from legal tasks. Ask your team which questions need prompt attention and where to send old reports. Do not order tests just to fit a lawsuit website.

What does the research say about relaxers?

A study found a link with womb cancer. It did not prove the cause for one person. The finding is not a ruling about your product.

The Sister Study analysis included 33,947 women who had a uterus at enrollment. They reported hair-product use in the prior year. Later cancer diagnoses were compared across use groups; this was not a trial assigning women to use products.

The authors call for more research and better knowledge of the chemicals involved. Its frequent-use group is a research category. It does not set how many uses a firm or court requires.

Who may qualify for a claim review?

Used a relaxer and have a diagnosis? Ask a lawyer to review your dates, product and health records. This page cannot decide whether you have a claim.

The federal transfer order describes allegations of reproductive harm. Allegations do not establish that a company caused your cancer. A lawyer needs to assess evidence and the law for your facts.

The September 2026 notice sets a first test trial for September 2027. That future date is not your filing deadline or a promise that your case will pay. Ask for your own time-limit review.

What records help with care and a claim?

Gather the diagnosis reports and product details you have. List dates and gaps. Ask each provider how to get missing health records.

Federal rules generally permit access to covered records, with exceptions. Ask which records the provider still maintains and how to request them. Keep original reports rather than rewriting an uncertain history.

Before hiring a lawyer, ask for written fee and expense terms. The ABA model rule discusses fees based on the outcome and costs after a loss. It does not confirm any firm’s price or acceptance.

Scientific evidence for this case

Find out where you stand.

The review is free and private. Asking for it doesn’t commit you to anything.

Ask a law firm to review your case

Questions about this guide

Does the Sister Study prove causation?

No, the Sister Study does not prove legal causation for one person. It reported an association between frequent straightener use and uterine cancer. Courts and experts still must address causation in the litigation.

Source: Chang et al., Use of Straighteners and Other Hair Products and Incident Uterine Cancer · as of Oct 7, 2026

What type of uterine cancer is linked to hair relaxers?

The Sister Study found an association between hair straightener use and uterine cancer broadly, including endometrial carcinoma (the most common type). The mechanism — chronic estrogen overstimulation from EDCs — primarily drives Type I endometrial cancers (estrogen-dependent). However, all uterine cancer subtypes diagnosed after regular relaxer use may be eligible for the lawsuit.

I had a hysterectomy for uterine cancer. What is my case worth?

No settlement has been announced. What any claim is worth depends on its facts, and no one can promise an amount. No per-person payment grid has been announced in MDL 3060, and the first federal test trial is set for September 7, 2027.

Sources

  1. Court docket notice 2041, September 24, 2026 (primary court-document mirror)Court docket notice 2041, September 24, 2026 (primary court-document mirror) · court
  2. JPML transfer order, February 6, 2023JPML transfer order, February 6, 2023 · court
  3. Chang et al.: original study abstract, 2022Chang et al.: original study abstract, 2022 · study
  4. JPML pending actions report, October 1, 2026 (cached primary PDF)JPML pending actions report, October 1, 2026 (cached primary PDF) · court
  5. ABA Model Rule 1.5: feesABA Model Rule 1.5: fees
  6. Court guide: filing time limitsCourt guide: filing time limits · court
  7. Health-record access, 45 CFR 164.524Health-record access, 45 CFR 164.524 · regulator
  8. JNCI 2022 original author abstract via PubMedNational Library of Medicine · study
  9. Hair Relaxer Use and Risk of Uterine Cancer in the Black Women's Health StudyEnvironmental Research · 2023 · study
  10. Use of Hair Products in Relation to Ovarian Cancer RiskCarcinogenesis · 2021 · study
  11. Scheduling posture in MDL-3060 (N.D. Ill., Judge Mary Rowland): the court took direct control of bellwether selection (April 2026), scrapping the party alternating-picks system; bellwether fact discovery closed June 10, 2026; case-specific Daubert and summary judgment motions due Nov 16, 2026; first trials broadly expected 2027. 11,877 cases pending as of July 1, 2026 (fourth-largest MDL). No verdicts or settlements yet. CAVEAT: documented only via litigation-tracker blogs (llamalab.ai, mdlupdate.com) — last-resort sources, no court record or major-press confirmation fetched.llamalab.ai · Jul 1, 2026 · court
  12. NCI: Uterine Cancer
  13. NCI: Endometrial Cancer Symptoms
  14. NCI: How Cancer Is Diagnosed
  15. NCI: What Is Endometrial CancerNCI: What Is Endometrial Cancer · regulator

Checked against 14 primary sources by People's Justice editors · Updated

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People's Justice research team · Updated Oct 4, 2026