Unknown Cause
Polycystic Ovarian Syndrome (PCOS) was first described by Italian physician Antonio Vallisneri in 1721. Despite centuries of study, the exact cause of PCOS remains unknown.
It is believed that a combination of genetic, environmental, and lifestyle factors contribute to the development of this condition.
Although the precise mechanisms are still under investigation, it is understood that these factors may predispose a woman to develop PCOS.
The Regular Cycle
A regular menstrual cycle is an indicator that key bodily systems are functioning properly. The menstrual cycle involves a series of hormonal changes that prepare the body for pregnancy.
Hormones such as oestrogen and progesterone play crucial roles in maintaining reproductive health. For women with PCOS, however, hormonal imbalances disrupt the regularity of menstrual cycles, which in turn affects ovulation and reduces the chances of conception.
Normal Circumstances
In a typical menstrual cycle, the pituitary gland, located at the base of the brain, plays a critical role. It produces two important hormones: Follicle Stimulating Hormone (FSH) and Luteinising Hormone (LH).
These hormones travel through the bloodstream to the ovaries, where they stimulate the maturation of ovarian follicles, each containing an egg. As the eggs mature, the follicles enlarge and produce oestrogen, the primary female sex hormone.
Once oestrogen levels reach a certain threshold, ovulation occurs, releasing a mature egg into the fallopian tube where it awaits fertilisation.
If fertilisation does not occur, the egg and the lining of the uterus are shed during the menstrual period. This cycle repeats itself monthly, creating a regular pattern that is vital for reproductive health.
The Disrupted Cycle
In women with PCOS, this delicate hormonal balance is disrupted. The pituitary gland may release excessively high levels of LH into the bloodstream, preventing the proper maturation of ovarian follicles.
Consequently, ovulation does not occur, and the menstrual cycle becomes irregular. Instead of dissolving, the immature follicles remain as fluid-filled sacs or cysts within the ovaries.
The elevated LH levels also stimulate the production of male hormones, such as testosterone and androgens, which further interfere with ovulation. As a result, women with PCOS often experience irregular menstrual cycles, making it difficult to conceive.
Additionally, the excess male hormones can cause visible symptoms such as increased hair growth on the face and body (hirsutism) and acne.
Insulin Resistance
A significant number of women with PCOS are also insulin resistant, meaning their cells do not respond effectively to insulin, a hormone produced by the pancreas that regulates blood sugar levels.
Insulin resistance leads to higher levels of insulin in the bloodstream, which can stimulate the ovaries to produce more male hormones. This creates a vicious cycle that exacerbates the symptoms of PCOS.
Insulin resistance not only impacts fertility but also increases the risk of other health issues, such as weight gain, type 2 diabetes, and cardiovascular diseases. Managing insulin resistance is therefore a crucial aspect of treating PCOS and improving overall health.
Treatment Options
While PCOS poses significant challenges, there are various treatments available that can improve ovulation and increase the chances of pregnancy. These treatments, when combined with lifestyle modifications, can be highly effective.
1. Medications
- Birth Control Pills: These can help regulate menstrual cycles and manage PCOS symptoms such as excess hair growth and acne. Birth control pills balance hormone levels, making cycles more predictable.
- Metformin (Glucophage): Originally used to treat type 2 diabetes, metformin improves insulin sensitivity in women with PCOS. It can help lower insulin levels, reduce weight, and restore regular menstrual cycles.
- Clomiphene (Clomid): This fertility medication induces ovulation by stimulating the release of FSH and LH from the pituitary gland. Clomiphene is often the first line of treatment for women with PCOS who are trying to conceive.
2. Surgical Options
- Ovarian Drilling: If medication alone is not successful, a surgical procedure known as ovarian drilling may be considered. This involves making small holes in the ovary with a heated needle or laser, which can reduce androgen levels and stimulate ovulation.
- Intrauterine Insemination (IUI) and In Vitro Fertilisation (IVF): These assisted reproductive technologies (ART) are options for women who do not respond to other treatments. IUI involves placing sperm directly into the uterus, while IVF involves fertilising an egg outside the body and then implanting the embryo into the uterus.
3. Lifestyle Modifications
- Weight Reduction: For women with PCOS who are overweight, losing even a small amount of weight can significantly improve symptoms. A reduction of 5-10% of body weight can help regulate menstrual cycles, lower insulin levels, and increase the chances of pregnancy.
- Dietary Changes: A low glycemic index (GI) diet can be beneficial for managing insulin resistance. This involves choosing carbohydrates that are slowly absorbed, such as those found in fruits, vegetables, and whole grains, to help maintain stable blood sugar levels.
- Regular Exercise: Engaging in moderate physical activity at least three times a week can help improve insulin sensitivity, reduce weight, and promote overall health. Exercise is an essential component of managing PCOS symptoms and improving fertility.
Comprehensive Management
Effectively managing PCOS requires a comprehensive approach that includes medical treatment, lifestyle modifications, and ongoing support. Women with PCOS should work closely with their healthcare providers to develop a personalised treatment plan that addresses their unique needs and goals.
1. Medical Monitoring
Regular medical check-ups are essential for monitoring the effectiveness of treatments and making necessary adjustments. This includes tracking menstrual cycles, hormone levels, and metabolic markers such as blood sugar and cholesterol levels.
2. Nutritional Counselling
Consulting with a registered dietitian can help women with PCOS develop a balanced diet plan that supports weight management and improves insulin sensitivity. A dietitian can provide guidance on portion control, meal planning, and making healthier food choices.
3. Psychological Support
Dealing with PCOS can be challenging, both physically and emotionally. Psychological support, whether through counselling, support groups, or stress management techniques, can help women cope with the emotional aspects of the condition and maintain a positive outlook.
4. Education And Awareness
Educating women about PCOS and its implications empowers them to take control of their health. Awareness campaigns and patient education materials can provide valuable information on managing symptoms, improving fertility, and reducing the risk of associated health conditions.
While PCOS can complicate the path to pregnancy, it is important to remember that many women with this condition go on to have successful pregnancies.
By understanding the underlying mechanisms of PCOS and utilising a combination of medical treatments and lifestyle modifications, women can improve their chances of conceiving and achieve better overall health.
The journey may be challenging, but with the right support and resources, hope and successful outcomes are within reach for women with PCOS.
Dr Navdeep Singh Pannu, a fertility specialist, currently serves as the medical director at TMC Fertility and Women’s Specialist Centre in Puchong. With over a decade of experience, he has assisted couples of all ages and from various parts of the world in building the families they have always wanted. Additionally, he is a consultant obstetrician, gynaecologist, and laparoscopic surgeon.
- This is the personal opinion of the writer or publication and does not necessarily represent the views of Ova.
