What parts of the body does the ultrasound work on?

Ultrasound primarily works on soft tissues in the body, including organs such as the heart, liver, kidneys, and bladder, as well as muscles and blood vessels. It is commonly used in obstetrics to visualize the fetus during pregnancy. The technology can also assess conditions in the abdomen, pelvis, and other areas where soft tissues are present. However, it is less effective for imaging bones and air-filled structures like the lungs.