Onset Of Lower-Left Abdominal Pain After Meals

What Causes Lower-Left Abdominal Pain After Eating?

Lower-left abdominal pain after eating can have various causes, ranging in severity from 'troubling' to 'needs attention'.  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 lower-left abdominal pain after eating, 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 "lower-left abdominal pain after eating" as a symptom.  Here are three possibilities:
  • Lactose Intolerance
  • Irritable Bowel Syndrome
  • Diverticular Disease

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:
frequent episodes of diarrhea
bowel movement changes
occasional painful urge to defecate
abdominal pain relieved by BM
regular episodes of diarrhea
severe lactose intolerance
dairy product consumption
frequent mucus in stools
significant meal-induced pain
green stool color
meals worsen left iliac pain
having watery stools
... and more than 30 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of lower-left abdominal pain after eating:
Cause Probability Status
Lactose Intolerance 92% Confirm
Irritable Bowel Syndrome 28% Unlikely
Diverticular Disease 5% Ruled out
* This is a simple example to illustrate the process

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 pain caused by eating, The Analyst™ will ask further questions including this one:
LOWER-LEFT abdomen: Do you experience discomfort or pain above your left hip that only occurs after eating?
Possible responses:
→ No / I have it even when I don't eat / don't know
→ Occasional mild discomfort
→ Frequent mild and/or occasional moderate pain
→ Frequent moderate and/or occasional severe pain
→ Severe pain after most/all meals
Based on your response to this question, which may indicate mild left iliac pain after meals, moderate left iliac pain after meals, major left iliac pain after meals or severe left iliac pain after meals, The Analyst™ will consider possibilities such as:
IBS (Irritable Bowel Syndrome)

The pain is generally located in the lower abdomen, although the location and type of pain can vary.  Emotional stress and eating can exacerbate the pain, whereas a bowel movement often provides some relief.

Lactose Intolerance

Pain or cramps in the lower abdomen usually begin 30 minutes to 2 hours after eating or drinking milk or milk products.

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