The vast majority of abdominal ultrasound examinations with polyps are performed to detect polyps in the gallbladder. In clinically asymptomatic patients or those with a diameter of <1 cm, surgery is not necessary, but close observation and regular follow-up. In case of recurrent acute or chronic cholecystitis, or even biliary pancreatitis, laparoscopic cholecystectomy can be considered in order to obtain a cure. The root cause of gallbladder polyps in the abdominal cavity is the formation of cholesterol monophasic water crystals due to the imbalance of bile acid and cholesterol dissolution, because most of the monophasic water crystals are pseudopolyps of the gallbladder, which usually do not need to be treated when they are asymptomatic or less than 1 cm in diameter, and should be closely observed and followed up regularly. However, true polyps, wide basal polyps or polyps with a diameter of more than 1 cm have the potential for malignant transformation and are usually treated by laparoscopic cholecystectomy.