Gallbladder polyps ultrasonographically appear as papillary or rounded isoechoic or hypoechoic nodules protruding from the wall of the gallbladder into the lumen, partly with a wide base and partly with a narrow base, with no posterior acoustic shadows, which do not move with changes in body position. Gallbladder polyps need to be differentiated from gallbladder stones, gallbladder cancer and other diseases. 1. Gallbladder stones: ultrasonography shows a strong echogenic mass in the gallbladder cavity with acoustic shadows at the back, which can move with the change of body position; if it is a filled gallbladder stone, there is no bile filling in the gallbladder. 2. Gallbladder cancer: ultrasonography shows that the wall of the gallbladder is thickened locally and not smooth. With the progression of the disease, it will be manifested as the shadow of a mass protruding into the gallbladder cavity, which may infiltrate into the liver. When you find gallbladder polyps, you need to consult a doctor in time and improve the relevant examination, and carry out standardized treatment under the guidance of the doctor.