One of my relatives has bad breath. Common causes, including dry oral cavity, poor dental health, dirty tongue coating, tonsil stones, are ruled out. We now suspect that H. pylori is the culprit.
He experiences stomachache sometimes, and is going to have a H. pylori breath test. Also, saliva samples taken nearer to oesophagus have a stronger smell, suggesting certain relation to stomach/lungs problems.
However, even the test result is positive, H. pylori might not be the actual cause. It is well known that (in our city) nearly one third of the population is infected by this bacteria, but often no symptoms can be observed.
So, I want to make a primary test before seeking advice from professionals.
How does H. pylori-caused halitosis smell like? (please be descriptive and use simile)
Some Google results suggest that the breath smells like volatile sulphur compound. However this is strongly disagreed by some articles. A few articles suggested a smell of urine, but did not give any evidence.
Thanks in advance.