What You Need to Know About OHSS
If you are someone going through IVF or even just thinking about starting fertility treatments, you may have heard about ovarian hyperstimulation syndrome (OHSS). The fear is real: Will my body overreact to these medicines? Could I become dangerously unwell just for wanting a baby? If you are anxious, you are not alone. OHSS can sound terrifying, especially when all you want is a chance at parenthood. But understanding what OHSS really is, how often it happens, and how it is managed, can help you feel more in control—and more hopeful—about your journey.
What Exactly Is OHSS and Why Does It Happen?
OHSS is a complication that sometimes arises during fertility treatments like IVF, when the ovaries are stimulated to produce more eggs than usual. In a natural cycle, you would typically release one egg per month. With fertility drugs, the goal is to help your ovaries make many eggs at once, increasing the chances of success. Sometimes, however, the ovaries can become “too active.”
What actually happens during OHSS? Your ovaries swell up with multiple follicles, each filled with fluid and hormones like estrogen. After egg retrieval, these enlarged ovaries can leak fluid into your abdomen because substances released during this process make the lining inside your belly (the peritoneum) more “leaky” than usual. This is why you may notice bloating, discomfort, or even dizziness. Most women will only experience mild symptoms, but a small number may develop severe OHSS, which can be serious and may need hospital care.
The thought of developing OHSS is scary, but with the right information and a careful approach, you can protect your health and your dream of having a baby.
Who Is at Risk? Understanding Your Own Chances
Not everyone faces the same risk of OHSS. Certain women are more likely to experience it, especially if they:
- Have polycystic ovarian syndrome (PCOS)
- Are younger than 35
- Produce a high number of follicles (more than 25) during stimulation
- Have very high estrogen levels during treatment
- Have a low body weight
- Have had OHSS in the past
OHSS is more common in women with PCOS, and since PCOS is much more prevalent in India than in the West, clinics here have gained far more experience in managing and preventing this complication.
of women undergoing IVF experience some degree of OHSS, but severe cases are very rare.
At Malpani Infertility Clinic, we have successfully avoided hospital admissions for OHSS for more than a decade, thanks to our unique preventive strategies tailored for Indian women.
Recognising the Symptoms: What Should You Watch For?
Symptoms of OHSS can range from barely noticeable to very concerning. Knowing what to expect helps you act quickly, and reduces anxiety if you start to feel “off.”
- Mild symptoms: Lower abdominal swelling, bloating, mild pain or discomfort, a little dizziness, or weight gain of a kilo or two.
- Severe symptoms: Rapid weight gain (more than 2 kg a day), severe pain or swelling in your abdomen, decreased urine output, difficulty breathing, nausea or vomiting you cannot control, or feeling lightheaded with low blood pressure.
Most women only have mild symptoms, which settle with rest, drinking plenty of fluids, and gentle monitoring. If you start having severe symptoms or can’t keep down fluids, you need to tell your doctor right away. Severe OHSS can be dangerous, but it is extremely rare with careful management.
How We Prevent and Manage OHSS at Malpani Infertility Clinic
Years ago, OHSS was considered a dangerous mystery. Today, it is both preventable and treatable—especially in the hands of a clinic that truly understands your risks and responds proactively.
Here’s what sets our clinic apart:
- Meticulous Egg Retrieval: We use a double lumen needle to flush each follicle thoroughly during egg retrieval. This removes the granulosa cells responsible for producing the chemicals that make the peritoneum leaky, dramatically lowering the risk of OHSS.
- No Unnecessary Cycle Cancellations: Many Western clinics cancel cycles if you have too many follicles or high estradiol levels, fearing OHSS. This wastes time, money, and hope. Our technique allows us to safely proceed, maximizing your chances of pregnancy without added risk.
- Personalised Monitoring: We track your response to medications with ultrasounds and blood tests, ensuring we catch any signs of overstimulation early.
- Gentle, Honest Guidance: We will tell you when to rest, what to watch for, and when to contact us—no sugarcoating, just the facts you need to protect yourself.
If OHSS develops despite all precautions, we treat even severe cases knowledgeably. Sometimes, a procedure called “paracentesis” may be done, where a small tube drains the extra fluid from your abdomen. This brings instant relief and helps your body recover faster. In extremely rare cases, hospital care may be necessary, but with our approach, this is almost unheard of.
What If I Get Pregnant? Does OHSS Get Worse?
It may seem unfair, but the worst cases of OHSS actually occur when a woman conceives in the same cycle. This is because the pregnancy hormone (hCG) keeps stimulating the ovaries, causing them to continue leaking fluid. The good news is that this also means your treatment worked! Even then, with careful monitoring and supportive care, you can get through it safely.
Some clinics manage high-risk cases by freezing all embryos and postponing the embryo transfer. This lets your body recover before pregnancy hormones kick in, and then you can have a frozen embryo transfer later when the risk is gone. At Malpani Infertility Clinic, our thorough preventive measures usually mean you do not have to face this delay or disappointment.
With the right support and clear information, OHSS does not have to derail your fertility journey.
When Should You Call Your Doctor?
Do not ignore symptoms that worry you. Contact your fertility team immediately if you notice:
- Rapid weight gain (over 2 kg a day)
- Severe or increasing abdominal pain
- Difficulty breathing
- Very little urine output
- Severe nausea or vomiting
- Feeling faint or dizzy
It is always better to check and be reassured than to wait and worry. Our clinic is always here to answer your questions and help you feel safe throughout your treatment.
Frequently Asked Questions
Q: How common is OHSS during IVF?
A: Most women will have mild symptoms, with only about 3-6% experiencing moderate or severe OHSS. At Malpani Infertility Clinic, our protocols make severe cases extremely rare.
Q: What are the earliest signs of OHSS?
A: Bloating, mild abdominal discomfort, and small weight gain are usually the first signs. Severe pain, rapid weight gain, or trouble breathing are red flags that need urgent attention.
Q: Can OHSS be prevented?
A: Yes. Careful monitoring, appropriate medication doses, and specialised egg retrieval techniques like those at our clinic significantly reduce your risk.
Q: Does having PCOS increase my risk of OHSS?
A: Yes, women with PCOS are more likely to develop OHSS, which is why personalising your protocol and close monitoring is so important.
Q: If I develop OHSS, will it affect my fertility or chance of getting pregnant?
A: Mild OHSS does not usually affect your fertility. In fact, it often means your ovaries responded well to the medications. Severe OHSS can delay embryo transfer, but does not reduce your overall chance of pregnancy in future cycles.
Q: What should I do if I feel unwell after egg collection?
A: Notify your doctor or clinic immediately, especially if you have severe pain, swelling, difficulty breathing, or decreased urination. Early intervention makes a big difference.