What Causes Bad Mouth Breath?

Even though there could be a lot of factors which could cause bad mouth breath, one of the main culprits is having dry mouth. Bad breath that is caused by the dryness of the mouth can happen any time especially to those who possess a high amount of anaerobic bacteria in their mouth. The smell gets worse with the avoidance of water as well as food for long hours that tend to make the mouth drier.