Abdominal ultrasonography is an indispensable tool for daily use clinical practice of a gastroenterologist. It is a technique used to viasualize abdominal internal organs: liver, gallbladder, pancreas, spleen, kidneys and large abdominal vessels. It is accessible, safe and provides much information. In many centers, such as ours, all consultations have an ultrasound machine. Ultrasound allows in many cases the final diagnosis, in others help us to decide what endoscopic procedure we need to carry out.