India is facing an intense and prolonged heat wave, with temperatures in several regions touching 45°C to 47°C in recent weeks, raising growing concerns over its impact on pregnant women and unborn children. Medical experts and recent studies suggest that extreme heat is emerging as a serious public health risk, particularly for maternal health across several northern and central states.

According to a recent 2026 study based on India’s Indo-Gangetic plains, including Uttar Pradesh, Bihar, and West Bengal, exposure to extreme temperatures during pregnancy significantly increases health risks. The research found that pregnant women exposed to severe heat or cold conditions face a 2.26-times higher risk of preterm birth. Experts note that temperatures between 25°C and 27°C are considered optimal, but risks begin rising beyond 30°C, with a 10% increase in premature delivery likelihood when temperatures remain above 32°C for extended periods.

Doctors explain that extreme heat affects the body beyond simple discomfort. Senior gynecologist Dr. Alka Chaudhary has noted that high temperatures lead to dehydration, which reduces blood flow to the uterus and increases stress hormones in the body. This physiological strain can contribute to complications such as premature birth and low birth weight. Other specialists, including Dr. Kirti Khaitan, warn that early pregnancy exposure to heat may also increase risks of high blood pressure, gestational diabetes, and miscarriage, with hospitals reportedly seeing a rise in such cases during peak summer months.

A growing concern highlighted by public health experts is the indirect impact of heat on access to medical care. Data from the National Family Health Survey (NFHS) suggests that many pregnant women are skipping routine antenatal check-ups due to extreme weather conditions. Long travel in harsh midday heat, combined with physical discomfort, is discouraging hospital visits, leading to delayed detection of pregnancy-related complications that could otherwise be managed early.

The risks do not end after childbirth. New mothers are also vulnerable to heat-related exhaustion, dehydration, and infections, which can complicate recovery and breastfeeding. Public health advocates, including experts from the Population Foundation of India, warn that the situation is especially severe for women in economically weaker communities who lack access to cooling systems such as air conditioners or coolers, making them disproportionately vulnerable.

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Doctors recommend several preventive measures to reduce risks during pregnancy in extreme heat conditions. These include maintaining hydration with at least 3–4 liters of water daily, consuming hydrating foods such as watermelon, pomegranate, buttermilk, and ragi, and avoiding outdoor exposure during peak afternoon hours. Lightweight cotton clothing and reliance on teleconsultation for medical advice are also strongly advised.

Experts further stress the need for systemic measures such as adjusted hospital timings, cooling centers, and awareness campaigns, warning that without urgent intervention, climate change could increasingly threaten maternal and child health outcomes.

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