Sonography, also known as ultrasound imaging, is a medical imaging technique that uses high-frequency sound waves to produce images of the internal organs and tissues of the body. During a sonography exam, a handheld transducer is placed on the skin and emits sound waves that bounce off internal structures and return to the transducer, creating a real-time image on a computer screen.
Sonography is an important diagnostic tool in modern medicine, as it is non-invasive, safe, and does not involve ionizing radiation like X-rays or CT scans. It is commonly used to diagnose and monitor a variety of medical conditions, including pregnancy, abdominal and pelvic disorders, cardiovascular disease, musculoskeletal injuries, and more.
Preparations entirely depend on the type of ultrasound. You might be on fast on those days or have to drink plenty of water.
Ultrasounds are safe procedures and no zero harmful effects on humans.