Is there a relationship between endometriosis and egg quality?


Endometriosis is a disease where tissue resembling the lining of the uterus grows elsewhere in the body. The condition affects around 176 million women worldwide [1] and around half of these women experience infertility, which is defined as the inability to conceive a child.

Infertility due to endometriosis can be the result of endometrial lesions blocking the fallopian tubes or damaging the ovaries. Some researchers think that endometriosis may also cause infertility by affecting egg quality.

Is there a relationship between endometriosis and egg quality?Correlation between endometriosis and egg quality?

According to a study that reviewed research articles addressing the effect of endometriosis on egg quality, eggs retrieved from women with endometriosis for in vitro fertilization (IVF) are more likely to fail maturation compared to eggs retrieved from women with infertility due to other causes [2].

Similarly, research has shown that women with endometriosis who underwent IVF treatment using donor eggs from women without endometriosis had high success rates while in women without endometriosis undergoing IVF treatment using eggs from a donor with endometriosis, success rates were significantly reduced. This suggests that the quality of eggs might be affected by endometriosis and contribute to low fertility.

Can you conceive with low ovarian reserve?

Ovarian reserve refers to the quality and quantity of eggs a woman has. The main factor that causes low ovarian reserve is age, although other factors such as genetics, some treatments, and injury can also play a role. Low ovarian reserve reduces a woman’s chance of getting pregnant but she may still be able to conceive. In certain cases, assisted reproductive techniques such as IVF can help [3].


Endometriosis may affect egg quality through three main mechanisms: by creating an inflammatory environment in the reproductive tract, by affecting hormonal balance, and by reducing the blood flow to or within the ovaries.


Endometriosis is considered to be an inflammatory disease where the body activates an immune response against the endometrial lesions that form in different parts of the body. There are several biological factors that are produced in excess during an inflammatory response and it is thought that these factors can reduce egg quality.

Hormonal imbalance

Women with endometriosis often have endometriomas or cysts that form in or around the ovaries. It is thought that these endometriomas may disrupt the ability of the ovaries to produce the right amounts of reproductive hormones such as estrogen and progesterone therefore creating an environment of hormonal imbalance. This, in turn, can have a negative impact on egg development and quality.

Reduced blood flow

Endometriosis causes the formation of scar tissue indifferent parts of the reproductive tract. This scar tissue can compromise normal blood flow to or within the ovaries and reduce oxygen supply. This can hinder the maturation of eggs and reduce their quality.


There is no direct way of measuring egg quality but a woman’s fertility can be assessed by measuring levels of anti-mullerian hormone (AMH) and follicle stimulating hormone (FSH) in the blood. AMH is secreted by cells and developing egg sacs and is a good indication of a woman’s egg reserve. FSH is secreted by the brain and stimulates egg development in the ovaries. If levels of either hormone is low, this can indicate a lower chance of embryo implantation, which is sometimes referred to as egg quality. However, AMH levels are not the only indicator of egg quality and is a more reliable marker of egg quantity.

What is a good AMH level for IVF?

AMH levels decrease naturally with age. Normal AMH levels are between 7.14 pmol/L and 28.56 pmol/L in fertile women, and AMH levels below 7.14 pmol/L indicate reduced ovarian reserve [4]. According to the National Institute for Health and Care Excellence (NICE) less than 5.4 pmol/L of AMH will normally lead to a low response in IVF while AMH levels of 25 pmol/L or higher will lead to a high response [5].


How can I increase my egg quality and quantity naturally?

Currently, there is no scientifically proven way of delaying ovarian aging or improving egg quality. However, a diet rich in omega-3 fatty acids may delay ovarian aging and improve egg quality.

A study conducted using a mouse model has shown that lifelong consumption of a diet rich in omega-3 fatty acids leads to the animals being fertile through to a later age. Conversely, a diet rich in omega-6 fatty acids is associated with very poor reproductive success when the animals are older [6]. Omega-3 fatty acids are found in foods such as fish, other seafood, and soybean while omega-6 fatty acids are found in vegetable oils, nuts, and seeds. The study also showed that treating the mice with a diet rich in omega-3 fatty acids when their reproductive function was starting to decline due to age could improve egg quality and treating them with a diet rich in omega-6 fatty acids resulted in very poor egg quality.

Coenzyme Q10, which is an antioxidant and energy-promoting agent is also thought to improve egg quality [7]. Coenzyme Q10 is found in foods such as meat, fish, spinach, cauliflower, broccoli, oranges, strawberries, soybeans, lentils, peanuts, sesame seeds, pistachios, soybean, and canola oil. It is also available as a supplement.

Does IVF improve egg quality?

Although IVF treatment can help a woman conceive, the procedure itself does not have an effect on egg quality. In fact, the success rate of IVF is closely linked to the quality of a woman’s eggs. In cases where egg quality is too low, women can become pregnant using donor eggs that are fertilized with the sperm of the woman’s partner using IVF and then implanted back into her uterus.


We perform excision surgery that remove endometriosis. If the ovaries are involved with endometriotic cysts, also known as endometriomas, meticulous removal of the cyst is performed, followed by reconstruction of the ovary. This can help preserve and increase the number of healthy ovarian follicles and chances of women conceiving naturally. We do not burn/ablate the ovarian endometrioma as that can destroy the surrounding ovarian tissue and lead to diminished ovarian reserve [8].


Deep excision, endometriosis excisionIt is incredible to think that the part of my body that caused me so much pain and heartache most of my life and the part that caused the most fear of not being able to carry a child, ended up being the strongest part of me when it mattered the most
Jamie A.

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  1. What Is Endometriosis? Causes, Symptoms and Treatments
  2. NCBI: Is the oocyte quality affected by endometriosis? A review of the literature
  3. Fertility Center: Diminished Ovarian Reserve
  4. Extend Fertility: Fertility Statistics by Age
  5. The Association for Clinical Biochemistry & Laboratory Medicine: Assessment and treatment for people with fertility problems
  6. NCBI: Prolonging the female reproductive lifespan and improving egg quality with dietary omega-3 fatty acids
  7. NCBI: The impact of lifestyle modifications, diet, and vitamin supplementation on natural fertility
  8. Can Endometriosis Cause Diminished Ovarian Reserve?

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    After years of excessively painful periods, a serious loss of quality of life, and a series of uninformed and uninterested doctors, Dr. Seckin and Dr. Goldstein turned my life around. I was told I woke up from my surgery almost a year ago with a smile on my face, and I haven't stopped since. Before I heard of Dr. Seckin,…

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    I have struggled with endometriosis and adenomyosis since first starting my period at 13. I was diagnosed at 21 and what followed was a series of unsuccessful surgeries and treatments. My case was very aggressive and involved my urinary tract system and my intestines. After exhausting all of my local doctors I was lucky enough to find Dr. Seckin. We…

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    Like so many women who have tirelessly sought a correct diagnosis and proper, thorough medical treatment for endometriosis, I found myself 26 years into this unwanted journey without clear answers or help from four previous gynecological doctors and two emergency laparoscopic surgeries. I desperately wanted to avoid the ER again; a CT scan for appendicitis also revealed a likely endometrioma…