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Published on: 8/20/2026
What diagnostic tests are used to investigate swelling in the left upper abdomen?
Swelling in the left upper abdomen is typically evaluated through imaging tests such as an ultrasound or CT scan, along with blood work to help identify the underlying cause. Common causes include an enlarged spleen, stomach issues, pancreatic conditions, or kidney problems, so accurate diagnosis is essential for proper treatment.
Because left upper abdominal swelling can stem from many different conditions—some minor and some more serious—it's important not to guess. Taking a free, instant, online symptom check can help you clarify possible causes based on your specific symptoms and guide you on the right next steps, whether that's monitoring at home or seeking prompt medical care.
Reviewed for medical accuracy: 07/15/2026
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Frequently Asked Questions
4 answersThe most common questions people search after this page
- Most askedWhat could cause swelling in the left upper abdomen?
- How can I determine the underlying reason for my upper left abdomen swelling?
- How is upper left side abdominal pain and swelling diagnosed by healthcare professionals?
- How does left upper abdomen swelling differ from other types of abdominal swelling?
Concerned about your symptoms?
Explanation
When someone has swelling in the left upper abdomen, doctors use different tests to find out what is causing it. Imaging tests like ultrasound or CT scans are helpful because they can show pictures of the inside of the body. These pictures help doctors see if there is something unusual, like a growth or swelling.
Blood tests can also be useful. They help doctors check if there are any signs of infection or other health problems that might be causing the swelling.
In some cases, if the tests show something unusual, doctors might need to do more tests to understand exactly what is happening. If you're experiencing abdominal swelling or other concerning symptoms, you can check your symptoms with our free AI-powered tool to better understand what might be causing them before your doctor's appointment.
(References)
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Pragt-Weijer ME, Thunnissen RJ, de Langen ZJ, & Boomsma JH. (2001). [Abdominal pain and vomiting: a 4-year old boy with .... Nederlands tijdschrift voor geneeskunde, 11525092.
Singh S, Singh A, Bhagat S, & Singh B. (2015). Retrograde Jejuno-gastric Intussusception. Nigerian journal of surgery : official publication of the Nigerian Surgical Research Society, 25838773.
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