An abdominal ultrasound is a non-invasive diagnostic imaging test used to examine the organs and structures within the abdomen. It uses high-frequency sound waves to create real-time images of internal organs like the liver, gallbladder, spleen, pancreas, kidneys, and bladder. It may also assess blood flow in abdominal vessels using Doppler technology.
The procedure is simple, painless, and typically takes about 20–30 minutes. A water-based gel is applied to the skin over the abdomen to help transmit the sound waves, and a handheld device called a transducer is moved across the area. The sound waves bounce off organs and tissues and are translated into images on a monitor.
Doctors recommend abdominal ultrasounds to detect or evaluate causes of abdominal pain, swelling, liver disease, kidney stones, gallstones, or abnormal blood flow. It is also used for follow-up monitoring of known conditions and during procedures like fluid drainage or biopsies.
Since it doesn’t use radiation, abdominal ultrasound is safe for all ages, including pregnant women. Preparation may include fasting for a few hours before the test to reduce gas and ensure clearer images.