Customise Consent Preferences

We use cookies to help you navigate efficiently and perform certain functions. You will find detailed information about all cookies under each consent category below.

The cookies that are categorised as "Necessary" are stored on your browser as they are essential for enabling the basic functionalities of the site. ... 

Always Active

Necessary cookies are required to enable the basic features of this site, such as providing secure log-in or adjusting your consent preferences. These cookies do not store any personally identifiable data.

No cookies to display.

Functional cookies help perform certain functionalities like sharing the content of the website on social media platforms, collecting feedback, and other third-party features.

No cookies to display.

Analytical cookies are used to understand how visitors interact with the website. These cookies help provide information on metrics such as the number of visitors, bounce rate, traffic source, etc.

No cookies to display.

Performance cookies are used to understand and analyse the key performance indexes of the website which helps in delivering a better user experience for the visitors.

No cookies to display.

Advertisement cookies are used to provide visitors with customised advertisements based on the pages you visited previously and to analyse the effectiveness of the ad campaigns.

No cookies to display.

PCOS and Pregnancy

Having Polycystic Ovary Syndrome (PCOS) can make it difficult to conceive. In fact, PCOS is one of the main causes of infertility today. Approximately one third of couples who seek help for infertility find that it is due to anovulation and 80% of these cases are directly associated with PCOS. The good news however, is that the symptoms of PCOS are manageable and can quite often be fully reversed by implementing diet and lifestyle changes.

The main pregnancy complications reported to affect women with PCOS are hypertension, preeclampsia and gestational diabetes. A direct correlation between PCOS and increased risk of miscarriage has not been identified, however, women with a high Body Mass Index (BMI) are at greater risk of miscarrying and obesity is a common comorbidity of PCOS. Women with a high BMI are strongly recommended to lose weight prior to attempting to conceive.

Not all women with PCOS experience pregnancy complications

PCOS is not a simple condition; it is a syndrome, with a range of symptoms. It is widely recognised that of the three predominant clinical symptoms (hyperandrogenism, anovulation and polycystic ovaries), two of the three must be present for an accurate diagnosis to be made.

The different phenotypes have differing risk rates for adverse pregnancy outcomes.  Women who experience anovulatory cycles will struggle to conceive naturally because without ovulation pregnancy cannot occur. For these women, identifying the reason why they are not ovulating and implementing lifestyle changes to rectify this may be sufficient to restore fertility. For those women who are morbidly obese (BMI >40), pharmacological ovulation induction will not usually be considered until attempts are made to reduce BMI through diet and lifestyle changes.

Women who experience irregular cycles because they have PCOS, have a 5-fold increased risk of adverse pregnancy outcomes, including gestational diabetes and preterm birth. Low progesterone levels, a sign of anovulation, are also a risk factor for miscarriage. Hyperandrogenic women, whose condition is confirmed biochemically by the presence of increased circulating androgens (male hormones), have a 4-fold increased risk of pregnancy complications. High androgen levels not only adversely affect the early stages of embryo implantation and placental formation, but also increase the risk of preeclampsia and reduced birth weight, possibly due to reduced nutrient transfer through the placenta.

No single cause, means no single treatment

One of the major problems with the management of PCOS is that it is a multi-factorial condition, with genes, hormones, the environment and inflammation all thought to play a role in its pathogenesis. Unfortunately, the infertility that accompanies the condition is also highly variable, often involving several coinciding factors. For example, as described above, women with PCOS often struggle with their weight, they are also often insulin resistant, both of which increase the risk of pregnancy complications. They may have chronic low-grade inflammation and/or placental abnormalities affecting nutrient transfer. Finally, a significant proportion will undergo additional infertility treatment, which in itself is a risk factor, not only for gestational diabetes, hypertension and preeclampsia, but also for multiple births.

Will there be long-term consequences for my child?

Further work is required to assess the long-term health implications for children born to mothers with PCOS. The risks regarding premature birth and low/high birth weight are already understood, but any impact on their future metabolic or reproductive health is inconclusive. There is increasing evidence to support a genetic component to PCOS, so females may inherit a predisposition to the condition from their mothers. Further research and awareness is needed to support implementation of such testing in OBGYN clinics.

Nabta is reshaping women’s healthcare. We support women with their personal health journeys, from everyday wellbeing to the uniquely female experiences of fertility, pregnancy, and menopause.

Get in touch if you have any questions about this article or any aspect of women’s health. We’re here for you.

Sources:

  • Balen, A H, et al. “The Management of Anovulatory Infertility in Women with Polycystic Ovary Syndrome: an Analysis of the Evidence to Support the Development of Global WHO Guidance.” Human Reproduction Update, vol. 22, no. 6, Nov. 2016, pp. 687–708., doi:10.1093/humupd/dmw025.
  • Crosignani, P G, et al. “Overweight and Obese Anovulatory Patients with Polycystic Ovaries: Parallel Improvements in Anthropometric Indices, Ovarian Physiology and Fertility Rate Induced by Diet.” Human Reproduction, vol. 18, no. 9, Sept. 2003, pp. 1928–1932.
  • Palomba, S, et al. “Pregnancy Complications in Women with Polycystic Ovary Syndrome.” Human Repoduction Update, vol. 21, no. 5, 2015, pp. 575–592., doi:10.1093/humupd/dmv029.
  • Palomba, S, et al. “Pregnancy in Women with Polycystic Ovary Syndrome: the Effect of Different Phenotypes and Features on Obstetric and Neonatal Outcomes.” Fertility and Sterility, vol. 94, no. 5, Oct. 2010, pp. 1805–1811., doi:10.1016/j.fertnstert.2009.10.043.
  • Thessaloniki ESHRE/ASRM-Sponsored PCOS Consensus Workshop Group. “Consensus on Infertility Treatment Related to Polycystic Ovary Syndrome.” Human Reproduction, vol. 23, no. 3, Mar. 2008, pp. 462–477., doi:10.1093/humrep/dem426.