10/29/2025
Urine Hormone Testing and Key Breast Cancer Clues đ
Let us start by saying, awareness for breast cancer isn't pink. It's properly testing your hormones and assessing your risk factors. Proper testing means using urine. Not saliva. Not blood.
When you test hormones using urine, you gain insight into their metabolism. And how you metabolize estrogen can influence how it affects your cells, the symptoms you experience, and overall vitality. One pathway in particular â the 4-hydroxylation (4-OH) pathway â has drawn attention for its potential link to breast cancer risk.
đ©” What Is the 4-OH Pathway?
When estrogens like estradiol are broken down in the liver, enzymes (especially CYP1B1) can convert them into 4-hydroxyestrone and 4-hydroxyestradiol. These compounds can be further oxidized into quinones, reactive molecules that can bind to DNA and cause mutations. Over time, this kind of DNA damage may contribute to cancer development â particularly in estrogen-sensitive tissues like the breast.
đ©” What the Research Shows
đ Studies have found that higher levels of 4-OH estrogen metabolites â or a higher ratio of 4-OH to other estrogen forms â are associated with increased breast cancer risk, especially in postmenopausal women.
đ In contrast, metabolites from the 2-hydroxylation pathway seem to be protective.
đ Lab experiments back this up: 4-OH metabolites can damage DNA and transform normal breast cells into malignant ones.
đ©” Why It Matters
I tell my patients all the time--"Based on your symptoms, I can reasonably estimate the amount of each hormone you have. I don't need a test for that. I need to know HOW it is getting out of the body. That's where the healing happens."
Understanding the 4-OH pathway helps explain why estrogenâs role in breast cancer isnât just about how much estrogen you have, but also about how your body processes it.
Genetics, liver function, diet, and lifestyle can all influence this balance. And if you're not pooping every single day, forget the rest of this! None of it matters if you're not eliminating those estrogens in your stool.
đ©” Checks and Balances
I also always tell my patients that God designed us perfectly. He created some "checks and balances" in the estrogen metabolism pathways, to protect us. If an estrogen does traverse down the 4-OH pathway, it can be methylated.
This is why it's important to be taking methylated B vitamins and understanding the MTHFR mutation! If that estrogen still becomes a quinone, it can be detoxified with glutathione! But so many things deplete our glutathione levels daily, that most of us are not optimal. Our urine test checks this, and we address it if necessary. That's why I love to say "test, don't guess."
đ©” The Bottom Line
If you are concerned about your hormones, breast cancer risk, and optimal health. Work with a team like ours. It is imperative to understand the complexity of hormones and the impact on your health. But also remember, hormones are one piece of the puzzle. You need to look at the entire picture. Only addressing hormones will lead to a bigger mess!