Ultrasound is a medical imaging technique that uses high-frequency sound waves to create images of internal organs and structures in the body. The purpose of an ultrasound is to provide diagnostic information about the health and function of the body's internal organs and tissues.


Ultrasound can be used to detect small cysts. In fact, ultrasound is often the preferred imaging modality for detecting cysts because it is non-invasive, painless, and does not involve exposure to ionizing radiation. Ultrasound can detect cysts as small as a few millimeters in size, depending on the location of the cyst and the type of ultrasound exam being performed. Ultrasound can also be used to help determine the nature of the cyst, such as whether it is fluid-filled or solid, and to guide the placement of a needle for a biopsy or aspiration if needed.