Pressure/Fullness Under Left Rib Cage

What Causes Pressure Under Left Rib Cage?

Pressure under left rib cage can have various causes, just like most other symptoms.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

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Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose pressure under left rib cage, we could:

  • Research the topic
  • Find a doctor with the time
  • Use a diagnostic computer system.
The process is the same, whichever method is used.

Step 1: List all Possible Causes

We begin by identifying the disease conditions which have "pressure under left rib cage" as a symptom.  For example, enlarged spleen.

Step 2: Build a Symptom Checklist

We then identify all possible symptoms and risk factors of each possible cause, and check the ones that apply:
chronic nausea
frequent unexplained nausea
significant abdominal distension
highly elevated lymphocyte count
significant epigastric pain
... and so on

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of pressure under left rib cage.

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

If you indicate abdominal discomfort, The Analyst™ will ask further questions including this one:
MIDDLE-LEFT abdomen: Do you experience pressure or 'fullness' below your lower left rib which is painless or slightly tender? (Do not answer this question if there is significant pain.)
Possible responses:
→ There is significant pain / don't know
→ No
→ Yes, slight pressure with no/slight pain
→ Yes, significant pressure with no/slight pain
Based on your response to this question, which may indicate no left lumbar pressure, slight left lumbar pressure or significant left lumbar pressure, The Analyst™ will consider possibilities such as Enlarged Spleen.
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