is the hormone THAT starts the growth of an egg in your ovaries.
AMH or Anti-Mullerian Hormone is the hormone starts the growth of an egg in your ovaries. It’s what turns the egg from a primordial egg into a teenage egg. Low AMH is where there is not enough of this hormone to grow you a good quality egg that can be fertilized. Once your teenage egg gets large enough, about 2 mm or so in size, FSH or Follicular Stimulating Hormone takes over finishing the egg ready to be ovulated.
AMH has less to do with Ovarian Reserve and everything to do with how likely your egg is to fertilize and create a pregnancy. If your AMH is too low your FSH has to work too hard to produce your egg. FSH doesn’t like working too hard and produces poor quality eggs if it doesn’t have its friend AMH to do all the egg growing at the start. This is why low AMH levels and high FSH levels produce poor quality eggs and make it really hard for IVF doctors to get you pregnant.
WHAT YOU NEED TO KNOW
- Low Ovarian Reserve is linked but not causative with poor egg quality in women.
- Your AMH score can be a reflection of your Ovarian Reserve.
- The lower the AMH score is the harder it is for a woman’s eggs to be fertilized.
- Poor Ovarian Reserve and low AMH levels are linked to Egg Quality and the ability for an egg to be fertilized.
WHAT DOES AMH HAVE TO DO WITH LOW OVARIAN RESERVE?
Ovarian reserve means ‘how many primordial eggs you have in reserve’. When a woman is born she has about 400000 primordial eggs, by the time your average pre-menopausal woman, a woman at the end of her fertile window, say about 45 years of age, still has on average 5000 – 10000 primordial eggs left. Low AMH has nothing to do with ovarian reserve – getting old has more to do with ovarian reserve. In real time, in life, in the clinic and the IVF surgery, low AMH has more to do with how likely an egg is to fertilize than how many primordial eggs are left.
WHAT DOES AMH AND FSH HAVE TO DO WITH EACH OTHER?
- The more AMH you have the less FSH you need to produce a good egg. This is a good thing.
- The less AMH you have the more FSH you need to produce an egg. This is a bad thing.
- Healthy AMH scores vary from country to country but they all agree the closer you get to 0 the harder it is for your body to produce a fertilizable egg.
See the research
Compare changes in AMH levels and pregnancy rates from over 300 clients.
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