A woman who is trying to become pregnant usually has one question in her mind: “What can I do to improve my chances?”
If she is also dealing with PCOD and obesity, the answer may involve looking at her health before looking only at fertility treatment.
I have seen women who have spent months or years dealing with irregular periods, weight gain and difficulty conceiving. Some have tried medicines for fertility, some have focused on their diet, and some have already consulted multiple doctors. In such cases, it is worth asking whether obesity itself is making the reproductive problem harder to manage.
The connection between obesity, PCOD and infertility is something I have studied both in my clinical work and through research.
When periods become irregular
One of the common problems associated with PCOD is irregular ovulation.
A woman may have periods every 40 or 50 days, sometimes even longer. In some cases, periods may stop for several months. This can happen because the ovaries are not releasing an egg regularly.
If there is no regular ovulation, naturally conceiving becomes more difficult.
Now add obesity to the picture.
Excess weight can affect the body’s hormonal and metabolic balance. In women who already have PCOD, this can make problems with ovulation more difficult.
This is why PCOD and obesity often need to be discussed together when a woman is having difficulty conceiving.
The weight-loss question
One of the first things patients ask me is whether losing weight can actually improve their fertility.
In some women, it can.
When a woman with obesity loses a significant amount of weight, her periods may become more regular. Ovulation can improve. Some women who were previously having difficulty conceiving may start ovulating more consistently.
That does not mean every woman will become pregnant after losing weight.
Fertility is more complicated than that.
There can be problems involving the ovaries, fallopian tubes, uterus or sperm. Age also matters. So, weight should be considered as one part of the assessment rather than being treated as the explanation for every case of infertility.
Why did I study this?
This question became particularly important in my own academic work.
I was a co-author of a study titled “Impact of Bariatric Surgery on Female Reproductive Health and Maternal Outcomes,” published in Obesity Surgery.
The study followed 45 women who had undergone bariatric surgery. Most underwent sleeve gastrectomy, while others underwent gastric bypass or adjustable gastric banding.
Among the women who had primary infertility, 7 conceived after bariatric surgery. Three became pregnant naturally, while four conceived with the help of assisted reproductive techniques.
We also observed improvement in PCOD-related menstrual symptoms following surgery.
The paper was accepted among the top 10 papers at the World Congress of Bariatric Surgery in Madrid, Spain.
What interested me most was not simply how much weight the patients lost. We wanted to understand what happened to their reproductive health after treating severe obesity.
Bariatric surgery is not an infertility operation
This point needs to be very clear.
Bariatric surgery is performed to treat obesity. It is not a procedure performed to directly treat infertility.
However, when severe obesity is contributing to irregular periods, PCOD and poor ovulation, substantial weight loss can change the situation.
For some women, their cycles become more regular.
For some, ovulation improves.
And for some, this can improve their chances of conceiving.
But I would never tell a patient that bariatric surgery guarantees pregnancy. It doesn’t.
A proper fertility evaluation is still necessary.
What changes after metabolic surgery?
The body goes through many changes after metabolic surgery.
Weight starts coming down. Blood sugar and other metabolic problems may improve. For some women, menstrual cycles also become more predictable.
This can be particularly relevant for women with PCOD and obesity.
There is another point that women should know. Fertility can return as weight comes down. A woman who previously had irregular or absent periods may begin ovulating again.
So, if pregnancy is not immediately planned, contraception needs to be discussed with the treating doctor.
If pregnancy is planned, timing matters too.
Pregnancy needs planning after bariatric surgery
I always tell patients that losing weight and becoming pregnant are two different stages.
After bariatric surgery, the body is going through a period of rapid weight loss. Nutritional requirements need to be monitored carefully.
Women planning pregnancy after surgery may need monitoring of nutrients such as iron, vitamin B12 and folate, among others.
Pregnancy should therefore be planned in consultation with the bariatric team and an obstetrician.
The goal is not simply to become pregnant. The health of the mother and baby needs to be considered throughout the pregnancy.
What did our research tell us about maternal health?
Our study did not look only at fertility.
We also looked at maternal and newborn outcomes among women who became pregnant after bariatric surgery.
Factors such as gestational age, birth weight, mode of delivery and maternal anaemia were assessed.
This is important because the discussion around obesity and fertility should not end when a pregnancy test becomes positive.
Pregnancy after bariatric surgery requires appropriate follow-up, just as pregnancy in a woman with obesity requires proper medical care.
My work in bariatric surgery
My work in this field has continued over many years.
I have contributed to more than 56 national and international peer-reviewed publications and have been a co-author of eight books in metabolic surgery.
My academic work has covered different areas of bariatric and metabolic surgery, including sleeve gastrectomy, gastric bypass, surgical outcomes and nutritional concerns.
In 2022, I was recognised as the Best Young Bariatric Surgeon of India.
For me, research is useful when it helps answer questions that patients actually have.
A woman doesn’t come to the clinic thinking about medical terminology. She wants to know whether she can lose weight, whether her periods can improve and whether she can have a baby.
Those are the questions we need to answer clearly.
What should a woman with PCOD and obesity do?
There is no standard answer for everyone.
If a woman has PCOD, obesity and infertility, her complete medical history needs to be considered.
We need to know how regular her periods are, whether she is ovulating, how much weight she has gained, whether she has diabetes or other metabolic problems and whether there are other reasons for infertility.
Her partner’s fertility may also need to be evaluated.
For some women, changes in diet, physical activity and medical treatment may be enough.
For women with severe obesity who meet the appropriate criteria, bariatric or metabolic surgery may be an option.
And for some, fertility treatment may still be required.
The important thing is to identify what is actually contributing to the difficulty in conceiving.
One conversation can change the way we look at infertility
When a woman tells me that she has been trying to conceive for a long time, I don’t want to look at one report and make a decision.
I want to hear her story.
How long has she been trying?
How are her periods?
Has she been diagnosed with PCOD?
Has her weight changed significantly?
Is she ovulating?
Has she already tried fertility treatment?
These questions help us understand whether obesity may be playing a role.
My work and research in bariatric surgery, PCOD, female fertility and maternal outcomes have shown me that treating severe obesity can have effects beyond weight reduction.
For the right patient, significant weight loss may help restore more regular periods and improve ovulation. It may improve the chances of conception when obesity is contributing to the problem.
But medicine should never promise what it cannot guarantee.
The right approach is to understand the woman first, identify the factors affecting her fertility and then decide what treatment makes sense for her.
This article is for general awareness and does not replace individual consultation with a bariatric surgeon, gynaecologist or fertility specialist.
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By Dr. Shivanshu Misra
