About this procedure
Abdominal ultrasound is a non-invasive scan of the liver, gallbladder, bile ducts, pancreas, spleen and selected abdominal vessels. It describes visible structures and does not replace a medical assessment.
What the examination or consultation can show
The scan may identify gallstones, certain cysts, changes in organ size and other visible abnormalities. A report describes findings, not a complete diagnosis. Blood tests or different imaging may still be needed depending on symptoms.
When an assessment may help
A clinician may recommend it for upper abdominal pain, bloating, abnormal liver blood tests or follow-up of an existing finding. An incidental change on an earlier scan can also warrant a focused assessment, but not every digestive symptom requires ultrasound.
Important limitations and differences
Ultrasound is less useful for the stomach and bowel because gas blocks the sound waves. Normal findings cannot exclude all causes of abdominal pain, including urgent abdominal conditions. Imaging must answer a specific clinical question.
Preparation and procedure
The clinician moves a transducer over the upper abdomen and sides, sometimes asking you to turn or hold your breath. Fasting is often requested when the gallbladder must be assessed, but the duration depends on age, other illnesses and the examination. Follow the clinic's instructions; do not stop prescribed medicines on your own.
Next steps and follow-up
The scan is diagnostic, not a treatment. The report may lead to observation, blood tests, consultation or another examination. Bring earlier images and reports for comparison; changes between measurements can reflect technique and scanning conditions.
When to seek urgent care
Sudden intense abdominal pain, a rigid abdomen, fainting, persistent vomiting or blood in vomit or stool requires emergency evaluation, not a routine ultrasound appointment. Call 103 for a suspected medical emergency.
Related health information
Pain under the right ribs; Gallstone disease; Chronic pancreatitis; Liver elastography.
Signs and symptoms
Diagnosis and tests
Care and treatment approaches
When to seek urgent care
Frequently asked questions
Must I fast before an abdominal ultrasound?
Fasting is often recommended when assessing the gallbladder; the exact preparation depends on the scan and your health, so confirm instructions when booking.
Does the scan show every stomach or bowel disease?
No. Gas and the location of organs can limit ultrasound; a clinician may recommend endoscopy or other tests when indicated.
Will I need blood tests after ultrasound?
Not necessarily. Further tests are chosen from your symptoms, examination and the specific imaging findings.
Important information
A medical consultation is needed for diagnosis and treatment recommendations.
Self-treatment can be harmful to your health.
