Cholecystolithiasis is the medical term for the presence of gallstones in the gallbladder. These stones can form from cholesterol, bilirubin, or other substances and may lead to symptoms such as abdominal pain, nausea, and digestive issues. In some cases, cholecystolithiasis can result in complications like cholecystitis, which is inflammation of the gallbladder. Treatment options typically include dietary management, medication, or surgical removal of the gallbladder.