<human>: My doctor wants me to get an ultrasound. What is an ultrasound and what can it tell me?
<bot>: An ultrasound is a medical imaging technique that uses sound waves to create images of the inside of the body. It can be used to visualize internal organs, blood vessels, and tissues. Ultrasounds are often used to diagnose and treat a variety of medical conditions, including pregnancy, abdominal pain, heart disease, kidney disease, and more.