Does gallbladder sludge show up on ultrasound? Yes it does. Gallbladder sludge shows clearly on an abdominal ultrasound scan. You Might Also Like What does fatty liver look on ultrasound? 25/01/2022 Where can i get an ultrasound in London without doctors referral? 25/01/2022 Is it easy to book an abdominal ultrasound appointment? 25/01/2022