Common Causes of Low Anti-Mullerian Hormone

woman pregnant holding her belly

The Anti-Mullerian hormone is essential in the female’s reproductive system. It determines your chances of naturally conceiving. High ovarian reserve means a higher chance of getting pregnant. Sadly, the ovarian reserve reduces as a woman ages. 

The AMH regulates the ovarian reserve in the female’s body. With a low level of AMH, it gets difficult to get pregnant – even one can become infertile. Apart from Age, various factors lead to low AMH levels. 

You can not control your ageing process, but you can control the other factors contributing to low AMH levels. For example, doctors recommend taking an AMH blood test for women trying to conceive or simply gauging their pregnancy chances. If you are experiencing any similar situation, read on to clear your mind. 

What is the Normal Level of AMH? 

In women, the anti-mullerian hormone is essential. However, women are born with little eggs for a lifetime. And this quantity decreases as you age. Eventually, when a woman crosses 35, the AMH level also falls. 

If you are younger than 35 and are experiencing low AMH levels, this could be due to various factors. From your daily routine to the environment, something is causing the AMH to decrease. The AMH blood test is an excellent option for knowing your AMH level. For better understanding, here is what the average level depending on the Age, should be; 

  • 20 years old – 3.4 ng/mL
  • 25 years old – 3.0 ng/mL
  • 30 years old – 2.5 ng/mL
  • 35 years old – 1.5 ng/mL
  • 40 years old – 1 ng/mL

3 Causes of Low Anti-Mullerian Hormone

There are multiple factors to low AMH. Having low levels of AMH doesn’t mean there is no chance for you to get pregnant. Besides the age factor, identifying the cause behind the low level of AMH can help you increase it. Consult a fertility specialist for the AMH blood test to measure your AMH level. If it is low, here are some reasons behind it; 


The most significant factor that causes AMH to decrease is Age. Every woman contains a lifetime supply of immature eggs since her birth. In easy words, this supply of immature eggs is utilized during every ovulation cycle. Therefore, this ovarian reserve decreases as a woman ages. 

Hence, ovarian reserve decreases as you get older. And by age 35-40, your chances of natural pregnancy also reduce. 


Another factor is genes. If women in your family have a history of poor fertility rates and low AMH, it can also significantly impact your AMH level.

Unhealthy Lifestyle 

Poor diet, smoking, alcohol consumption, and junk food are other primary reasons for the low levels of AMH. Food with less nutrition and processed food can lead to hormonal disbalance, obesity, underweight, irregular periods, etc. As a result, drastic changes in your diet and body can lead to low AMH levels. 


Knowing the leading cause behind low AMH levels can help you decide how to get pregnant.