The organs that can be examined by ultrasound cover almost all the organs of the human body, the most common is the abdomen such as liver, gallbladder, pancreas, spleen, kidney, prostate, uterus, ovaries, etc., and other organs such as thyroid, breast, heart, etc. can be examined by ultrasound. B ultrasound is known as B ultrasound, is the use of ultrasound in the body’s tissues of the reflection, refraction and other physical properties, through the instrument to receive signals, so as to display a variety of tissues and organs of the morphology to determine the location of the lesion, the nature of the function of the degree of damage. Ultrasound is able to examine every structure of the human body except bones and gas. For example, the abdomen can look at the liver, gallbladder, pancreas, spleen, kidneys; men can look at the prostate gland, seminal vesicle glands; women can look at the uterus, fallopian tubes, ovary structure; and also can look at the abdominal cavity large blood vessels, which can rule out the blood vessels of the important lesions or deformities. In addition to the abdomen, ultrasound can also be done to examine superficial organs, such as the thyroid, breast, superficial lymph nodes throughout the body, parotid, submandibular, salivary glands and other organs. Ultrasound can also look at blood vessels, including carotid arteries, vertebral arteries, and arteries and veins of the lower extremities, to find out if there is any sclerosis and narrowing of the blood vessels, if there is any plaque formation, and if there are any blockages. In addition to the vascular system, there is also the cardiac system, which can rule out malformations of the heart and understand the structure and function of the heart. In conclusion, as the instruments become more and more advanced, there are more and more items to be examined in ultrasound, please follow your doctor’s instructions.