In-office ultrasound is a medical imaging technique that uses high-frequency sound waves to create images of internal organs and tissues in the body. This diagnostic tool is non-invasive, painless, and safe, making it a popular choice for doctors to use in their offices. In-office ultrasound can be used to detect a variety of medical conditions, such as gallbladder disease, liver disease, and kidney stones, among others. This technique is also used during pregnancy to monitor the health and development of the fetus.