An isoechoic attachment of about 15x8mm in size to the gallbladder wall is an attachment of 15 x 8mm in the wall of the gallbladder and usually means a polyp in the wall of the gallbladder. A gallbladder polyp usually appears as a hypoechoic or isoechoic mass on ultrasound, is usually silent, and does not move with body position. 15 x 8 mm means that it is a relatively large polyp that is at risk of becoming cancerous, and therefore usually requires surgical treatment. Gallbladder polyps usually do not cause serious symptoms, but for polyps larger than 10mm, cholecystectomy should be considered to prevent cancer of the gallbladder. In your daily life, you should pay attention to eating less greasy food, strengthening exercise, controlling weight, and maintaining a good routine and lifestyle.