Uterine Cancer and Chemical Hair Straighteners

Among the many unique health care challenges that women face throughout their lives, a new concern is growing about the connection between the chemical hair straighteners that some women use and the development of uterine cancer.

There’s been a trending concern lately about the connection that uterine cancer and chemical hair straighteners share. Learn about the risk factors of uterine cancer, find out why some people are concerned about hair straightener products, read what the experts have to say and discover proactive ways to safeguard your health while you style your hair safely. 

Understanding Uterine Cancer

Uterine cancer typically originates in the endometrium, which is the lining of the uterus. It’s crucial to acknowledge that while several factors increase the likelihood of its development, the specific agents directly causing it are complex and not entirely known. 

Uterine cancer diagnosis involves several steps. Initially, health care providers gather information about symptoms and medical history. A pelvic exam is conducted to check the uterus, followed by imaging tests like ultrasound or MRI to get detailed images. 

To confirm the diagnosis, a biopsy is often performed, where a small tissue sample from the uterus is taken and examined under a microscope for cancer cells. Additionally, other tests may be done to determine the cancer’s stage and spread.

Risk Factors

  • Age and menstrual history: Uterine cancer mostly affects women after menopause, and having irregular periods or experiencing menopause late might raise the risk. 
  • Estrogen exposure: Exposure to a lot of estrogen without enough progesterone, possibly through hormone treatment, might cause some women to develop uterine cancer. 
  • Genetic factors: Some genetic conditions, like Lynch syndrome, might make someone likely to get uterine cancer. 
  • Hormonal imbalance: Having too much estrogen, especially compared to progesterone levels, is a big factor. 
  • Obesity: Having excess body fat can cause the body to produce more estrogen, which might raise the risk of uterine cancer. 

Cancer’s Intersection with Chemical Hair Straighteners

The possible connection between uterine cancer and chemical hair straighteners comes from worries about the chemicals used in these products. Researchers are not completely sure how such chemicals might affect uterine health, but the main thought is that using chemical hair straighteners for a long time could affect a woman’s hormones or might contain substances that may cause cancer. 

The Chemical Exposure Concern

Chemical hair straightening products often contain many ingredients, including parabens, bisphenol A—known as BPA—and even formaldehyde. These chemicals serve various purposes, from preserving the product to altering the hair’s structure. However, their prolonged contact with skin and the scalp raises concerns about potential absorption and long-term effects.

Exploring the Research: What the Studies Say

Researchers have looked into whether using chemical hair straighteners could be linked to the chance of getting uterine cancer. Currently, public research recognizes a connection between using chemical hair relaxers and uterine cancer risk. However, these findings aren’t conclusive beyond recognizing the increased risk, and researchers need more information to confirm a clear link between chemical hair straighteners and uterine cancer. 

Do Hair Relaxers Cause Cancer? Are Any Hair Relaxers Safe?

Some hair relaxers have fewer harmful substances in them, but none are completely safe. Opting for products labeled as “natural” or “organic” could lessen the exposure to certain chemicals, but it’s crucial to dig into their ingredients and thoroughly consider and discuss them with your health care provider. 

Do Chemical Hair Straighteners Cause Cancer?

Like hair relaxers, chemical hair straighteners—especially those with strong chemicals like formaldehyde—might raise the risk of cancer if they are used frequently. However, researchers are not certain yet, so more studies are needed to understand exactly how chemical hair straighteners might be linked to uterine cancer. 

Reducing Risk and Safe Usage

To minimize potential risks associated with chemical hair straightening products, consider the following precautions:

  • Air it out: Ensure there’s good airflow when using such products to lower the inhalation volume of the chemicals.
  • Ask experts: Talk to dermatologists or hairstylists for advice on healthier options or methods.
  • Check labels: Find products without parabens, formaldehyde or other unhealthy chemicals.
  • Use it less often: Cut down on how much you use them and follow the instructions.

Read the full study.

More to Read

Concerned that your hair care routine could cause potential health problems?

Talk with an expert at the University of Maryland Medical System.


Medically reviewed by David Caiseda, MD.

Posted by Eric Jackson