Medical - breath odor.

רפואה - ריח הפה

Here are the possible issues related to bad breath:

Gastroesophageal Reflux Disease (GERD)
Poor digestion
Helicobacter pylori infection
Bowel obstruction
Liver problems
Kidney problems

Shiurim in this topic

3770. Advice for Bad Breath: Physical, Spiritual, and Practical Guidance עצה לריח הפה, גשמית, רוחנית ומעשית