A test most women take without a single symptom to explain why. That is exactly the point.
What gestational diabetes actually is
During pregnancy, the placenta produces hormones that help the baby grow — and some of those same hormones make the mother's body more resistant to insulin. For most women, the pancreas makes enough extra insulin to compensate. When it can't keep up, blood sugar rises during pregnancy, usually in the second half. That is gestational diabetes mellitus (GDM) — diabetes identified for the first time during pregnancy, in someone who did not have it before.
How common it is in India
GDM is more common among Indian women than in many other populations. A national systematic review and meta-analysis puts the pooled prevalence at 13% (Mantri et al., BMC Public Health, 2024) — roughly one in eight pregnancies — with urban areas running slightly higher than rural.
Why it's usually silent
As with early signs of diabetes generally, most women with GDM have no symptoms at all. When signs do appear, they overlap with ordinary pregnancy — more thirst, more frequent urination, tiredness — which is exactly why doctors don't wait for symptoms. Everyone is screened.
How it's screened in India
Most centres use the DIPSI test: a single-step, non-fasting 75g glucose drink, with blood sugar measured two hours later. It's cost-effective and doesn't require fasting, which matters for screening at scale. It's usually done between 24 and 28 weeks, or earlier for women with:
- A family history of diabetes
- PCOS (see diabetes and PCOS for the shared insulin link)
- Being overweight going into pregnancy
- Age over 25
- A previous pregnancy with GDM, or a baby born at a high birth weight
What a diagnosis means for pregnancy
A GDM diagnosis is not a verdict — it's a plan that changes shape. For most women, it's managed with nutrition and activity guidance, reviewed regularly. Some women also need medication; when that's the case, it's chosen and adjusted by a doctor across the pregnancy, with insulin the option most often used because of its long safety record in pregnancy. Monitoring simply becomes more frequent — more check-ins, and growth scans to see how the baby is doing.
One clarification worth stating plainly: if you are currently pregnant, this page is educational context, not a substitute for the antenatal care you're already receiving. GDM management sits alongside your obstetrician, not instead of them.
What day-to-day management actually looks like
For most women, a GDM diagnosis translates into a fairly ordinary daily routine, not a dramatic overhaul:
- Regular home blood sugar checks — usually fasting, first thing in the morning, and again an hour or two after meals — so you and your doctor can see the pattern, not just a single number
- An eating pattern spread across the day, favouring steadier carbohydrates (whole grains, dals, vegetables) over refined ones, and more consistent meal timing rather than large gaps
- Regular, gentle activity — a daily walk is often specifically recommended, since movement genuinely helps the body use insulin better during pregnancy
- Keeping a simple log of readings to bring to each antenatal visit, since the trend over weeks matters more than any single reading
None of this replaces your obstetrician's guidance — it's the shape that guidance usually takes, and your doctor tailors the specifics to your numbers and your pregnancy.
What to watch for
Most of GDM management is calm and routine, but a few signs are worth mentioning to your doctor sooner rather than waiting for your next scheduled visit: readings that are consistently far outside the range your doctor has given you, episodes of very low blood sugar with shakiness, sweating, or confusion, or reduced foetal movement. These aren't meant to cause alarm — most pregnancies with GDM proceed without incident — but they're the signs that warrant a call to your antenatal team promptly rather than waiting it out.
Delivery planning with GDM
GDM can influence delivery planning in a few practical ways, decided by your obstetric team based on how your pregnancy is progressing: growth scans become more frequent in the third trimester to track the baby's size, since GDM can lead to a larger-than-average baby; blood sugar is often monitored more closely around the time of delivery itself; and the timing and mode of delivery are decided case by case, based on your numbers, the baby's growth, and standard obstetric judgment — not on a GDM diagnosis alone. This is very much a conversation with your obstetrician rather than something to plan around in isolation.
After the baby is born
For most women, blood sugar returns to normal within days to weeks of delivery. But the story doesn't end at delivery in one important way: having had GDM meaningfully raises the future risk of type 2 diabetes for the mother (see prediabetes explained for what that window looks like), which is why postpartum retesting — typically 6 to 12 weeks after delivery, then periodically — is part of the plan, not an afterthought. Breastfeeding is generally encouraged and safe with a GDM history, and some evidence points to it modestly supporting the mother's own blood sugar recovery — a question worth raising with your doctor rather than assuming either way.
What this means for the years after
A GDM diagnosis is also useful information for the future, not just the pregnancy. It's a legitimate reason to keep an eye on your blood sugar periodically in the years that follow, alongside the usual early signs of diabetes to stay aware of — and it's relevant for future pregnancies too, since GDM in one pregnancy raises the likelihood of it recurring in another. None of this is cause for alarm; it's simply a reason to treat periodic checks as part of your routine rather than something you only think about if symptoms appear.
A diagnosis during pregnancy isn't a verdict on the years after it. It's information — and information is what your doctor uses to help you meet both moments well.
Talk to a doctor
Told you're at risk for gestational diabetes, or want your blood sugar trend reviewed after delivery? An NMC-registered doctor on Kyros can talk you through it alongside your antenatal team. Take the assessment.
References
- Mantri N, et al. National and regional prevalence of gestational diabetes mellitus in India: a systematic review and Meta-analysis. BMC Public Health, 2024.
For general information only; not a substitute for your own doctor or antenatal care team.