During the summer months, cases of acute gastroenteritis tend to rise due to increased heat and humidity, which promote microbial growth in food and water. Dr. Pankaj Puri, Director of Gastroenterology at Fortis Escorts Heart Institute, highlights that symptoms can include frequent loose stools, abdominal cramps, nausea, and dehydration. Misuse of antibiotics is a growing concern, as most diarrhoea cases in summer are viral, making antibiotics ineffective and potentially harmful. The primary treatment focuses on hydration, with Oral Rehydration Salts being the most effective solution. Vulnerable groups, such as children and the elderly, should be monitored closely for signs of dehydration. Preventive measures include drinking clean water, avoiding street food, and maintaining good hygiene practices. While many cases resolve independently, persistent symptoms should prompt medical attention to avoid complications. Awareness and preventive steps can help protect gut health during the summer.