Gestational Diabetes covers diabetes that first appears during pregnancy — a condition India detects at unusually high rates, roughly 14-18% of pregnancies, and one that carries real risks for both mother and baby when uncontrolled. South Asian women are genetically more insulin-resistant than most other groups, so the pregnancy hormones that push everyone's blood sugars up have more room to cause trouble here. Our obstetricians, endocrinologists and editorial team explain when and how you are screened at your first antenatal visit and again at 24-28 weeks, what sugar targets to aim for on home glucose monitoring, when insulin is needed and why oral tablets aren't first-line in Indian obstetric practice, how gestational diabetes affects delivery, and what to do about your significantly elevated long-term type 2 diabetes risk after the baby arrives.
Last reviewed: 10 August 2026
Home health tests have gone mainstream in India. BP monitors, glucometers, cholesterol strips, pregnancy tests, urine strips. Here is what each actually measures reliably, when to trust the result, and when you still need a proper lab or doctor.
Expert answers from our medical team
Gestational diabetes (GDM) is high blood sugar first diagnosed during pregnancy, typically in the second or third trimester. Pregnancy hormones make the body more insulin-resistant, and if the pancreas can't compensate, sugars rise. India's rates are among the highest globally — roughly 14-18% of pregnancies — because South Asian women are genetically predisposed to insulin resistance.
Indian guidelines (DIPSI/FOGSI) recommend testing every pregnant woman with a 75g glucose challenge, once at the first antenatal visit and again at 24-28 weeks. Higher-risk women (obesity, family history of diabetes, past GDM, PCOS, previous large baby) get earlier and more frequent testing. Don't skip the test even if you feel fine — GDM is usually silent.
Uncontrolled GDM raises the risk of a large baby (making delivery harder and increasing cesarean risk), low blood sugar in the baby after birth, jaundice, and rarely stillbirth. It also raises long-term risks for both — the baby is more likely to develop obesity and diabetes later; the mother has a 50%+ chance of developing type 2 diabetes within 5-10 years. Good sugar control during pregnancy dramatically reduces these risks.
Diet and moderate exercise (walking after meals) are first-line. Targets are stricter than non-pregnant diabetes: fasting under 95, 1-hour post-meal under 140, 2-hour post-meal under 120 mg/dL. If diet alone doesn't reach these numbers, insulin is added — it doesn't cross the placenta and is the safest option during pregnancy. Oral tablets (metformin, glyburide) are used in some cases but aren't first-line in Indian obstetric practice.
GDM usually resolves within days of delivery — but your risk of future diabetes is high. Every woman who had GDM should get a fasting sugar and HbA1c 6-12 weeks postpartum, then repeat testing every 1-3 years for life. Breastfeeding, returning to a healthy weight, and continuing a diet-and-activity routine dramatically reduce long-term diabetes risk. Don't skip the postpartum follow-up — this window matters.
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