A gallbladder stone 9mmX19mm refers to a stone in the gallbladder that is 9mm x 19mm in size. Gallbladder stones are mainly cholesterol stones or mixed cholesterol-based stones and melanin stones. The causes of gallbladder stones are complex. Obesity, female hormones, pregnancy, high-fat diet, and diabetes can affect the formation of gallbladder stones. Most patients are asymptomatic, and if symptomatic, biliary colic is the typical symptom. Biliary colic mostly occurs after a full meal, eating greasy food or changing position during sleep, located in the right upper abdomen or epigastrium, paroxysmal or persistent pain, paroxysmal aggravation. Some patients only have symptoms such as vague pain in the upper abdomen and mild jaundice. For symptomatic gallbladder stones, you should go to the local hospital to complete the relevant examinations and further treatment after a clear diagnosis.