What HIDA scan looks for
Informed by recognized medical guidance
Overview
A HIDA scan is a type of nuclear medicine imaging test that looks at your gallbladder and the bile ducts that carry bile from your liver to your small intestine. It helps doctors see how well your gallbladder is working and whether bile is flowing properly.
Key facts
- A HIDA scan uses a small amount of radioactive tracer to highlight the liver, gallbladder, and bile ducts.
- The test can help diagnose problems like gallstones blocking the bile ducts, inflammation of the gallbladder, or bile leaks after surgery.
- It is a safe, low-dose radiation scan and the tracer leaves your body within a day or two.
HIDA scans are a common diagnostic test, but not as frequent as ultrasound. They are typically used when other tests have not given a clear answer about gallbladder or bile duct problems.
The test is used for people of all ages who have symptoms like upper abdominal pain, nausea, or jaundice (yellowing of the skin or eyes) that might be related to the gallbladder or bile ducts.
Symptoms
- Severe, sudden abdominal pain that does not go away
- High fever with chills
- Vomiting blood or passing blood in your stool
- ⚠New or worsening jaundice
- ⚠Pain that gets worse over a few hours
- ⚠Fever above 38°C (100.4°F)
Common symptoms
- Pain in the upper right part of the belly (abdomen), especially after eating a fatty meal
- Nausea or vomiting
- Feeling bloated or full
- Jaundice (yellow skin or eyes)
- Dark urine or pale stools
Symptoms in children
- Abdominal pain that comes and goes
- Fussiness or poor feeding in infants
- Yellowing of the skin (jaundice)
Symptoms in older adults
- Vague abdominal discomfort, often less specific than in younger adults
- Loss of appetite or weight loss
- Confusion or fatigue if jaundice is present
Causes
Main causes
- A HIDA scan is used when symptoms suggest a problem with the gallbladder or bile ducts, such as gallstones, inflammation, or a blockage.
Risk factors
- Being overweight or obese
- Eating a high-fat, high-cholesterol diet
- Having diabetes
- Being over 40 years old
- Having a family history of gallbladder disease
When to see a doctor
See a doctor urgently if:
- If you have severe abdominal pain, fever, or jaundice, seek medical help right away.
Book a routine appointment if:
- See your doctor if you have ongoing mild to moderate pain in your upper right belly, especially after meals.
- Make an appointment if you have recurring nausea or bloating.
Diagnosis
A HIDA scan is one of several tests doctors use to check the gallbladder and bile ducts. It is often done after an ultrasound or blood tests suggest a problem.
Tests that may be done
- HIDA scan (hepatobiliary iminodiacetic acid scan)
- Ultrasound of the abdomen
- Blood tests to check liver function and bilirubin levels
What to expect at your appointment
For a HIDA scan, you lie on a table while a small amount of radioactive tracer is injected into a vein. A special camera takes pictures over several hours. You may be given a fatty meal or a medicine to make your gallbladder contract. The test is painless and usually takes 1 to 4 hours.
Treatment
Treatment depends on what the HIDA scan finds. If a blocked bile duct or gallbladder inflammation is detected, options may include medication, procedures, or surgery. Your doctor will explain the best plan for you.
Self-care at home
- Eat a low-fat diet to reduce symptoms until you see your doctor.
- Drink plenty of water unless advised otherwise.
- Avoid overeating fatty or fried foods.
Medical treatments
If the HIDA scan shows a gallbladder or bile duct problem, doctors may recommend medications to dissolve gallstones or treat infection. Some people need a procedure called ERCP (endoscopic retrograde cholangiopancreatography) to remove a blockage. Always follow your healthcare provider's advice.
When is surgery considered?
Surgery may be needed if the gallbladder is severely inflamed (cholecystitis) or if gallstones keep causing problems. The most common surgery is removal of the gallbladder (cholecystectomy), often done with small incisions.
Living with this condition
If you have gallbladder issues, your daily life may involve managing symptoms with diet and watching for worsening pain. After treatment, most people return to normal activities.
Lifestyle tips
- Eat a balanced diet low in saturated fats.
- Maintain a healthy weight.
- Exercise regularly, as your doctor advises.
- Avoid crash diets that can increase gallstone risk.
Diet and exercise
A diet rich in fibre, fruits, and vegetables, with lean proteins, can help support gallbladder health. Regular physical activity, like walking, also helps.
Mental health and emotional wellbeing
Living with ongoing abdominal pain or worry about your health can be stressful. It’s normal to feel anxious. Talking to a trusted friend or healthcare provider can help.
Prevention
You cannot always prevent gallbladder problems, but a healthy lifestyle can lower your risk. Eating a low-fat diet, staying active, and not skipping meals may help.
Screening programmes
There are no routine screening tests for gallbladder disease in most people. Your doctor may recommend imaging if you have symptoms or risk factors.
Complications
If left untreated
- If a blocked bile duct is not treated, it can lead to serious infection (cholangitis).
- Inflammation of the gallbladder may worsen and cause rupture.
- Jaundice can become severe and affect liver function.
Long-term outlook
The outlook for most gallbladder and bile duct problems is very good when they are caught early. Treatments, including surgery, are safe and effective. Most people recover fully and go back to a normal life.
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Always verify with your doctor
Health guidelines vary by country and region. The information in this article is based on international clinical guidelines but may not reflect the specific guidelines, medications, or practices in your country. Always discuss your health concerns with your own doctor or healthcare provider, and refer to your local national health guidelines where available.
Important notice This information is for educational purposes only. It does not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your specific situation. If you are experiencing a medical emergency, call your local emergency services immediately.
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Sources and guidance
This article is educational and is prepared with reference to recognized health information and clinical guidance sources where available. Specific source links may vary by topic.
Last updated: July 19, 2026
Educational note: This information is for education only and is not a diagnosis.
Use it to support, not replace, advice from a licensed clinician.
If symptoms are severe, worsening, or urgent, call your local emergency number or seek emergency care.