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Published on: 8/20/2026

What organs are located in the left hypochondriac region that could cause swelling?

Yoshinori Abe

Reviewed by Yoshinori Abe, MD

Internal Medicine

Swelling in the left hypochondriac region — the upper left area of the abdomen just below the ribs — is often linked to problems with nearby organs, including the spleen, stomach, descending colon, or left kidney. Common causes include an enlarged spleen (splenomegaly), gastritis or stomach distension, colon inflammation, and kidney conditions such as cysts or infection.

Because these organs perform very different functions, identifying the exact cause of the swelling is essential to getting the right treatment. Symptoms may range from mild discomfort to sharp pain, bloating, or tenderness, and some underlying conditions require prompt medical attention.

If you're experiencing swelling or discomfort in this area, don't guess — get clarity. Take a free, instant, online symptom check to help narrow down possible causes based on your specific symptoms and receive guidance on the best next steps to take.

Reviewed for medical accuracy: 07/15/2026

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Explanation

The left hypochondriac region is located in the upper part of your abdomen, just beneath the ribs on the left side. Several organs are found here, and they might cause swelling if something is wrong.

  1. Spleen: The spleen is a key organ in this area. It helps filter blood and fight infections. Swelling of the spleen, known as splenomegaly, can happen due to infections or other health conditions.
  2. Stomach: Part of the stomach is also located in the left hypochondriac region. Issues like gastritis, masses or ulcers might cause swelling or discomfort.
  3. Colon: The colon, which is part of the large intestine, runs through this area. Problems like constipation, masses or inflammation/infections, can lead to swelling.

Understanding which organ might be causing the issue often requires medical evaluation, including imaging tests like ultrasounds or CT scans. If you are experiencing persistent pain or swelling in this area, you can start by using Ubie's free AI-powered symptom checker to better understand your symptoms before consulting a healthcare provider for a proper diagnosis and treatment plan.

(References)

  • Chaudhry SR, Luskin V, & Panuganti KK. (2025). Anatomy, Abdomen and Pelvis, Spleen. Unknown Journal, 29489170.

  • Ecanow JS, & Gore RM. (2015). Evaluating Patients with Left Upper Quadrant Pain. Radiologic clinics of North America, 26526430.

  • Fujishita T, Akagawa N, Tsuji M, Miwa N, Mizushima Y, & Kobayashi M. (1994). [A case of subperitoneal tuberculosis revealed by abdominal .... Nihon Kyobu Shikkan Gakkai zasshi, 7807760.

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