Abdominal ultrasound is not particularly ideal for bowel examination, especially for enteritis, ulcerative colitis, Crohn’s disease, etc. The effect is not obvious, and it is not recommended as the first choice for bowel examination. Abdominal ultrasound is mainly to understand the location and internal condition of the substantial organs, such as: liver, gallbladder, spleen, pancreas, kidneys, bladder, etc., and also able to check whether there is any invasion by tumors or compression of the surrounding organs. If you want to determine whether you are suffering from intestinal problems, abdominal ultrasound is easily affected by the gas in the intestines, and the examination has certain limitations, which can easily cause misdiagnosis and omission of diagnosis. If you want to determine whether you are suffering from intestinal problems, it is recommended that you undergo a colonoscopy, which can visualize the situation in the intestines.