'Rotten Egg', 'Eggy' Or 'Sulfur-Tasting' Burps

What Causes Rotten Egg Burps?

Rotten egg burps can have various causes, ranging in severity from 'worrying' to 'serious'.  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 rotten egg burps, 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 "rotten egg burps" as a symptom.  Here are eight of many possibilities (more below):
  • Food Allergies
  • Giardia
  • Heartburn
  • Overconsumption
  • Gluten Sensitivity
  • Gallbladder Disease
  • Stress
  • Bacterial Dysbiosis

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:
short-term memory failure
gallbladder attacks
having a CFS diagnosis
weak appetite
history of adolescent acne
severe facial burning/tingling
regular episodes of diarrhea
refined sugar consumption
having a moderate fever
current birth control pill use
excess caloric intake
history of heartburn
... and more than 150 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of rotten egg burps:
Cause Probability Status
Giardia 97% Confirm
Bacterial Dysbiosis 26% Unlikely
Gallbladder Disease 21% Unlikely
Food Allergies 4% Ruled out
Gluten Sensitivity 0% Ruled out
Stress 0% Ruled out
Heartburn 0% Ruled out
Overconsumption 0% 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 occasional problems caused by eating, regular problems caused by eating or frequent problems caused by eating, The Analyst™ will ask further questions including this one:
Do you ever suffer from very foul burps that can best be described as having a 'rotten egg' or 'sulfur' smell/taste?
Possible responses:
→ No / rarely / don't know
→ Yes, but only if I eat too much
→ Yes, a few times a year even if I don't overeat
→ Yes, a few times a month even if I don't overeat
→ Yes, frequently even if I don't overeat
Based on your response to this question, which may indicate rotten egg burps after overeating, occasional rotten egg burps, rotten egg burps or frequent rotten egg burps, The Analyst™ will consider possibilities such as:
Giardiasis Infection

Recurrent "rotten-egg" burps accompanied by diarrhea could be a sign of Giardia lamblia infection.

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