Why are so many people having stomach issues right now? Top doctors expose what this heat-rain mix is doing to your gut. Check what you should do

As temperatures climb, hospitals are witnessing a noticeable rise in stomach-related illnesses. Outpatient departments are seeing a steady increase in gastrointestinal (GI) infections, with doctors reporting 6–10 cases daily since early March.

The combination of heat, contaminated food, and unsafe drinking water creates ideal conditions for infections to spread. Add dehydration and long-distance travel into the mix, and the risk rises sharply. Common symptoms include vomiting, diarrhoea, stomach cramps, and constipation.

Heat and Hygiene: A Risky Combination

Doctors highlight that warmer weather accelerates bacterial growth in food, making it unsafe much faster than usual. Poor hygiene habits, especially among children, further increase the chances of infection.


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“We have been seeing a slight spike in gastrointestinal infections over the past couple of weeks, likely due to the onset of summer,” said Dr Amjad Khan H, as quoted by TOI. “The major causes are food contamination, poor hand hygiene, and faster bacterial growth due to warmer climate.”

While mild cases are usually manageable at home, doctors are now observing more severe symptoms. Patients are reporting frequent vomiting, up to 10–15 episodes of loose motions per day, and even low blood pressure in some cases.

Travel and Eating Out Add to the Problem

Summer holidays often mean travel, dining out, and indulging in street food, all of which increase exposure to infections. According to TOI, many families are returning from trips with bacterial GI infections, often caused by improperly stored or raw food.

“Lifestyle changes during holidays, like increased travel and eating out, also contribute to infections,” noted Dr Vijay Kumar HJ in TOI. Foods like ice cream, fruit salads, and street snacks, though tempting in the heat, can become sources of contamination if not handled properly.

Unsafe Water: A Hidden Threat

Another major concern is drinking water quality. With groundwater levels dropping in summer, many households depend on tanker water, which may not always be safe.

Construction work and infrastructure projects can damage pipelines, increasing the risk of contamination. This makes it harder to ensure clean and safe drinking water, further contributing to the rise in infections.

Beyond Infections: Other Summer Health Issues

Doctors are also noticing additional digestive problems linked to the heat. These include acidity, bloating, loss of appetite, and fatigue, often caused by dehydration and irregular eating habits.

“There is also a rise in anorectal conditions such as piles and fissures, largely driven by dehydration,” said Dr CM Parameshwara, as quoted by TOI. Reduced water intake leads to harder stools, increasing strain and discomfort.

Simple Tips to Stay Safe This Summer

Staying healthy during the summer does not require drastic measures, just a few mindful habits:

• Drink plenty of clean, safe water
• Avoid raw or uncovered street food
• Maintain good hand hygiene
• Eat freshly cooked meals
• Stay hydrated, especially while travelling

Summer may be a time for holidays and relaxation, but it also demands extra care. With rising temperatures creating ideal conditions for infections, small precautions can make a big difference. Stay alert, stay hydrated, and let your summer be about memories, not medical visits.

Inputs from TOI