Gastroesophageal Reflux Disease (GERD) occurs when stomach acid frequently flows back into the esophagus, causing irritation. Common causes include obesity, smoking, and certain foods. Symptoms include heartburn and regurgitation. Treatment involves lifestyle changes, medications, and possibly surgery. For expert care, consult the best Gastrologist in Jaipur at Saket Hospital, renowned for effective GERD management and comprehensive gastroenterological services.