Gallstones are hardened deposits in the gallbladder caused by imbalances in bile, often linked to obesity, high-fat diets, diabetes, or certain medications. The gallbladder usually needs removal, called cholecystectomy, when gallstones cause recurrent pain, infections, or complications like pancreatitis. Classic symptoms include intense abdominal pain, nausea, vomiting, fever, and jaundice. Surgery can be laparoscopic, with small incisions and faster recovery, or open, used in complex cases, and is performed by a general surgeon. Choosing a hospital depends on surgeon experience, accreditation, technology, and patient reviews. In India, the cost typically ranges from ₹50,000 to ₹1,50,000. After recovery, a low-fat diet and healthy lifestyle help the body adjust and maintain digestive health.