A liver and gallbladder ultrasound scan uses high-frequency sound waves to produce real-time images of the liver, gallbladder, and biliary system. It is commonly used to investigate upper abdominal pain, nausea, bloating, jaundice, or abnormal liver blood tests. The scan can identify gallstones, inflammation, bile duct widening, fatty liver changes, cysts, and other structural abnormalities. It is non-invasive and does not use radiation.

This ultrasound provides detailed images of the liver tissue, gallbladder wall and contents, and the bile ducts that drain bile into the gut. It can identify gallstones, gallbladder sludge, gallbladder wall thickening, bile duct dilation, liver cysts, fatty liver change, and focal liver lesions. It may also detect fluid around the liver or signs that suggest inflammation. Your GP interprets the report alongside symptoms and blood results.

This ultrasound provides detailed images of the liver tissue, gallbladder wall and contents, and the bile ducts that drain bile into the gut. It can identify gallstones, gallbladder sludge, gallbladder wall thickening, bile duct dilation, liver cysts, fatty liver change, and focal liver lesions. It may also detect fluid around the liver or signs that suggest inflammation. Your GP interprets the report alongside symptoms and blood results.

Ultrasound can identify features that support gallbladder inflammation, such as gallbladder wall thickening, distension, surrounding fluid, and tenderness when the probe is applied over the gallbladder area. These findings are interpreted with your clinical symptoms, such as right upper abdominal pain, fever, and nausea, and with blood tests. In some cases, additional imaging or urgent clinical review may be needed.

Ultrasound can assess the size of the bile ducts and identify whether they are dilated, which can indicate a blockage, such as a stone in the common bile duct or other obstruction. It may sometimes directly visualise a stone, but small duct stones can be difficult to see. If obstruction is suspected, your GP may arrange further tests such as MRCP or specialist referral for definitive assessment.

This scan is often requested for upper right abdominal pain because it can identify gallstones, gallbladder inflammation, bile duct abnormalities, liver enlargement, liver cysts, and fatty liver change. Many gallbladder problems cause pain after meals, particularly fatty foods. A normal scan does not rule out all causes of pain, but it can exclude many important structural conditions and guide whether further investigation is needed.

Fasting helps reduce bowel gas and ensures the gallbladder is distended, which improves the ability to detect gallstones, sludge, or wall thickening. If you eat before the scan, the gallbladder contracts and becomes harder to assess, which can reduce diagnostic accuracy. You will usually be advised to avoid food for several hours beforehand, with small sips of water often allowed unless you are told otherwise.

Small sips of water are often allowed before a liver and gallbladder ultrasound, especially during the fasting period. Large volumes of fluid, milky drinks, chewing gum, or sweets can stimulate digestion and reduce scan quality. If you are unsure, follow your appointment instructions. If you have diabetes or another condition affected by fasting, tell the clinic in advance so that preparation advice can be adjusted safely.

Most prescribed medications do not interfere with ultrasound imaging, so you should usually continue them as normal. The main issue is fasting, especially for people taking insulin or diabetes tablets, or those who need food with medication. If you have concerns about fasting safely, tell the clinic ahead of time. Your GP will interpret the scan findings in context with your medications and blood test results.

Ultrasound can detect increased brightness of the liver tissue, which is commonly seen in fatty liver disease. It can also assess liver size and the presence of other features that may suggest chronic liver disease. Ultrasound cannot measure liver fat percentage precisely and cannot confirm inflammation or fibrosis on its own, so your GP may combine the report with blood tests and sometimes further imaging or specialist referral.

Ultrasound can clearly show liver cysts and can usually distinguish simple cysts from more complex lesions based on their appearance. Simple cysts are often benign and may require no treatment. If a cyst has complex features, internal echoes, or unusual appearances, your GP may advise follow-up imaging, blood tests, or referral, depending on your symptoms and overall clinical context.

Ultrasound can identify focal liver lesions and describe their size, location, and appearance. However, ultrasound alone cannot confirm whether a mass is benign or malignant. If a suspicious lesion is seen, your GP may arrange further imaging such as contrast-enhanced MRI or CT, and sometimes blood tests or specialist referral. Many liver lesions found on ultrasound are benign, such as cysts or haemangiomas.

A gallbladder ultrasound can identify polyps as small tissue projections arising from the gallbladder wall and can measure their size. Size and appearance help guide follow-up, as larger polyps may require monitoring or specialist review. Your GP will interpret polyp findings alongside symptoms and risk factors. Ultrasound is commonly used for surveillance when polyps are found incidentally.

Gallbladder sludge is a mixture of bile and small particles that can accumulate and may be associated with biliary symptoms in some people. Ultrasound can identify sludge and assess whether stones are also present. Sludge may be temporary or persistent, and the clinical significance depends on symptoms, blood tests, and any associated inflammation. Your GP will advise whether follow-up or treatment is required.

Ultrasound may visualise the pancreas and identify gross structural changes, but it can be limited by bowel gas and body habitus. Some pancreatic conditions may not be fully assessed on ultrasound, especially if the view is restricted. If pancreatitis or another pancreatic condition is suspected clinically, your GP may request additional imaging, such as CT or MRI and interpret ultrasound findings alongside blood tests.

Hepatitis is primarily diagnosed through blood tests. Ultrasound may show indirect findings such as liver enlargement or changes in liver texture, but these are not specific and cannot confirm hepatitis on their own. The scan is still useful to rule out other structural causes of abnormal liver tests, such as bile duct dilation, fatty liver change, or focal lesions. Your GP will combine imaging with laboratory results.

Ultrasound can identify features that may suggest chronic liver disease, such as a nodular liver surface, altered liver texture, an enlarged spleen, or fluid in the abdomen. However, early fibrosis may not be visible, and ultrasound cannot stage fibrosis accurately by itself. Your GP may arrange additional tests such as elastography, blood fibrosis scores, or specialist referral if chronic liver disease is suspected.

Ultrasound uses sound waves rather than radiation, making it a safe imaging option during pregnancy when clinically indicated. It is commonly used to investigate upper abdominal pain, suspected gallstones, or abnormal liver blood tests during pregnancy. The scan is performed in a non-invasive manner, and the findings are interpreted in context with pregnancy-related physiological changes and your symptoms.

A liver and gallbladder ultrasound usually takes 15 to 20 minutes, depending on image quality and whether additional views are needed. You will lie on an examination couch while the Sonographer scans the upper abdomen using gel and a handheld probe. You may be asked to take a deep breath or change position to improve visibility of the gallbladder and liver.

After the examination, a signed clinical report is produced and shared with your GP or referring clinician. Your doctor will explain the findings in context, including symptoms, examination findings, and blood tests. If abnormalities are found, your GP may arrange further investigation, monitoring, or referral. If the scan is normal, your GP may still consider other causes of symptoms and advise next steps.