Severe abdominal pain and bloating with breathlessness during fertility treatment needs emergency care. This may be ovarian hyperstimulation syndrome, to which women with PCOS are particularly prone. Also seek urgent care for heavy prolonged bleeding.
A common hormonal condition in which ovulation becomes irregular or stops. It is among the most treatable causes of infertility, and most women with it conceive without ever needing IVF.
The important message here is that PCOS is usually treated with tablets rather than IVF. Women with PCOS are frequently steered towards expensive treatment they do not need.
Polycystic ovary syndrome is diagnosed when at least two of three features are present: irregular or absent ovulation, clinical or biochemical signs of excess androgens, and the characteristic appearance of many small follicles on ovarian ultrasound. The name is misleading — these are not cysts but immature follicles that have not developed to ovulation.
Insulin resistance underlies it in many women, and it is more marked with excess weight though it occurs in slim women too. Insulin resistance drives androgen production, which in turn disrupts the hormonal signals that trigger ovulation.
Because ovulation is irregular, cycles are unpredictable and often long, and conception is difficult to time. But the ovaries themselves usually contain plenty of eggs — often more than average — which is why treatment that restores ovulation is so effective.
It matters beyond fertility. PCOS carries a raised long-term risk of type 2 diabetes and, where periods are very infrequent, of endometrial problems from prolonged unopposed oestrogen. These deserve attention regardless of whether a pregnancy is being sought.
This is worth stating plainly because women with PCOS are regularly directed towards IVF when far simpler treatment would work. Letrozole restores ovulation in the majority of women with PCOS and is more effective than clomiphene for this condition. Modest weight loss — around five to ten percent of body weight where there is excess — restores ovulation in a substantial proportion by itself. Metformin helps in selected women with marked insulin resistance. IVF is appropriate where these have genuinely failed, or where there is another factor such as blocked tubes or severe male factor. If IVF has been recommended and you have not had an adequate trial of ovulation induction, ask why.
Diagnosis is clinical; testing excludes other causes and assesses metabolic risk.
Send a record of your cycles over the past six to twelve months — the date each period started and how long it lasted. Whether you are ovulating irregularly or not at all changes the treatment approach entirely, and no blood test conveys it as well. Send it alongside your hormone profile, pelvic ultrasound with antral follicle count, weight and height, and any glucose result.
Treatment works upward from the simplest thing that will restore ovulation.
Where there is excess weight, losing five to ten percent restores ovulation in a substantial proportion of women and improves the response to every subsequent treatment. Regular exercise improves insulin sensitivity independently of weight loss. Metformin helps selected women with marked insulin resistance.
Letrozole taken for five days early in the cycle induces ovulation in the majority of women with PCOS, and evidence shows it produces more live births than clomiphene in this condition. Cycles are monitored with ultrasound to confirm ovulation and to avoid multiple follicles developing.
Low-dose injectable stimulation where tablets have failed, requiring close monitoring because PCOS ovaries respond unpredictably and can over-respond. Laparoscopic ovarian drilling is an alternative in selected women, restoring ovulation without the multiple pregnancy risk of injections.
Appropriate where other treatments have failed or another factor is present. Women with PCOS respond strongly and are at particular risk of ovarian hyperstimulation syndrome, so protocols use lower doses, a GnRH agonist trigger, and freezing all embryos for later transfer. A clinic that does not take these precautions with a PCOS patient is not managing you well.
Cycle history and mid-luteal progesterone answer this, and it determines the whole approach.
Where it is, modest loss is the most effective intervention available and improves every subsequent treatment.
Several monitored cycles of letrozole before moving to injections or IVF. Skipping this step is common and expensive.
If you have PCOS and have not had a proper trial of letrozole, we will suggest that before IVF. It is inexpensive, it is available in your own country, and it works for most women with this condition.
Ovarian hyperstimulation syndrome is a recognised complication in PCOS and can be serious. Any severe bloating and pain during treatment needs same-day assessment.
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Usually not. Most women with PCOS conceive with ovulation induction — letrozole is first line and works for the majority — or after modest weight loss where weight is a factor. IVF is appropriate where these have genuinely failed or where another factor such as blocked tubes or severe male factor is present. If IVF has been proposed without an adequate trial of tablets, ask why.
Where there is excess weight, yes, and more than most women are told. Losing five to ten percent of body weight restores ovulation in a substantial proportion of women with PCOS and improves the response to every subsequent treatment. It is not easy with PCOS because insulin resistance works against it, but the effect on fertility is real.
In PCOS specifically, the evidence supports letrozole — it produces more ovulations and more live births than clomiphene in this condition. Clomiphene remains widely used and is not wrong, but if you have had several failed clomiphene cycles it is reasonable to ask about switching rather than escalating straight to injections or IVF.
Because PCOS ovaries contain many small follicles and respond strongly to stimulation, which raises the risk of ovarian hyperstimulation syndrome. A good clinic anticipates this with lower starting doses, close monitoring, a GnRH agonist trigger and freezing all embryos for transfer in a later cycle. These precautions should be discussed with you before starting.
No. Despite the name, these are not cysts requiring removal but immature follicles that have not developed to ovulation, and surgery to remove them is not a treatment for PCOS. Laparoscopic ovarian drilling is a different and specific procedure used in selected women where tablets have failed.
Yes, and it deserves attention regardless of pregnancy plans. It carries a raised long-term risk of type 2 diabetes and cardiovascular disease, and where periods are very infrequent, prolonged unopposed oestrogen can affect the endometrium. Periodic glucose testing and inducing a bleed at least a few times a year are both worth discussing.
Send a record of your cycles over the past six to twelve months alongside your hormone results. Cycle history tells us more about ovulation than any single blood test.
Your reports go directly to our medical team. We do not share your records with hospitals until you tell us to.
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