What Is AMH? Understanding the Hormone That Predicts Your Fertility Potential
If you’ve ever had a fertility consultation or started looking into egg freezing or IVF, you’ve probably heard of AMH. But what exactly is it—and why is it so important?
AMH, or Anti-Müllerian Hormone, is one of the key markers doctors use to assess ovarian reserve, or how many eggs you have left. Understanding your AMH level won’t tell you everything about your fertility—but it can give you crucial insight into how much time you may have to work with.
Let’s break it down.
🧬 What Is AMH?
Anti-Müllerian Hormone (AMH) is a hormone produced by tiny follicles (called antral follicles) in your ovaries. These follicles contain immature eggs. The more follicles you have, the more AMH your body produces.
In simple terms:
Higher AMH = More eggs.
Lower AMH = Fewer eggs.
That’s why AMH is widely used as an estimate of your ovarian reserve—the number of eggs left in your ovaries.
🩺 Why Is AMH Important?
Your AMH level helps fertility specialists:
Estimate your egg count
Predict how you may respond to fertility treatments (like IVF)
Determine whether egg freezing is a good option
Assess early menopause risk in some cases
Investigate irregular periods or PCOS
It’s especially useful when you’re trying to:
Plan ahead
Explore your timeline for starting a family
Decide whether to freeze eggs or embryos
That said, AMH isn’t a “fertility score.” It doesn’t predict whether you can or can’t get pregnant—it’s just one piece of the bigger picture.
📊 What Are Normal AMH Levels?
AMH levels are measured through a simple blood test. They’re typically interpreted based on age, because AMH naturally declines over time.
Here’s a rough guide for women of reproductive age:
⚠️ Note: AMH can vary by lab, testing method, and birth control use. Always interpret your results with a doctor.
📉 What Causes Low AMH?
Low AMH is often age-related—but not always.
Common causes include:
Natural aging (especially after age 35)
Genetics or family history of early menopause
Autoimmune or medical conditions
Chemotherapy or radiation
Certain ovarian surgeries
Some women with low AMH still conceive naturally. Others may need fertility support like IVF with higher medication doses or egg donation.
📈 What Does High AMH Mean?
High AMH is usually a sign of a high number of follicles—which might sound like a good thing. But in some cases, it may be a sign of PCOS (Polycystic Ovary Syndrome).
Women with PCOS often have:
Very high AMH levels
Irregular cycles or lack of ovulation
Increased risk of ovarian overstimulation during IVF
High AMH doesn’t usually mean better egg quality—just quantity. That’s why it’s important to evaluate AMH alongside other hormones and cycle patterns.
🧪 How Do You Test AMH?
Testing is simple:
✅ One blood draw
✅ Can be done any time in your cycle
✅ No fasting or special prep needed
You can request an AMH test through your OB-GYN, a fertility clinic, or even some at-home fertility test providers.
💡 Should I Get My AMH Tested?
You may want to test your AMH if:
You’re curious about your fertility window
You’re thinking about freezing your eggs
You’re over 30 and not ready for kids yet
You’ve been trying to conceive without success
You have irregular periods or PCOS symptoms
You’re considering IVF or IUI
It’s also helpful for peace of mind and proactive planning—even if you’re not ready to get pregnant yet.
💬 Final Thoughts
AMH is a powerful tool for understanding your fertility potential—but it’s not the whole story. It can’t measure egg quality, and it won’t predict your ability to get pregnant with 100% certainty.
But it can help you make informed decisions.
Whether you’re hoping to conceive soon, thinking about egg freezing, or just want to know your options—checking your AMH is a great place to start.
📍 Want to check your AMH or explore your fertility health?
FAQs: AMH & Fertility
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AMH (Anti-Müllerian Hormone) is a hormone made by the follicles in your ovaries. It gives doctors an estimate of your egg count (ovarian reserve), which helps guide fertility planning, egg freezing, or IVF treatment.
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Yes. While low AMH may mean fewer eggs, it doesn’t mean you can’t conceive. Many people with low AMH get pregnant naturally or with support from treatments like IUI or IVF.
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AMH levels between 1.0 and 4.0 ng/mL are typically considered normal for women of reproductive age. Levels below 1.0 may suggest lower ovarian reserve, while levels above 4.0 could be a sign of PCOS.
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No. AMH only gives an idea of quantity, not quality. Egg quality is mostly age-related and can’t be measured directly—but both matter when it comes to fertility.
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You can test your AMH any time in your cycle. Consider testing if you’re over 30 and not trying yet, thinking about freezing eggs, or having trouble conceiving.
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Possibly. Some hormonal birth control methods can slightly suppress AMH levels. If you’re on the pill or a hormonal IUD, talk to your doctor about the best time to test for accuracy.