Most of today's youth are very troubled by bad breath, which they consider common, you may think it is just a hygiene related problem, but persistent bad breath can actually point to health related problems. But persistent bad breath gives you a signal of many health problems, let's know about them- 

Digestive problems

Poor digestion is one of the major causes of bad breath. Problems like gas, acidity or constipation can cause an unpleasant odor to emanate from the stomach, which then travels through the mouth.

Gum disease (pyorrhea)

Pyorrhea is a serious gum infection that causes bleeding, swelling, and bad odor. If left untreated, it can lead to loosening or loss of teeth.

dry mouth

Saliva helps clean the mouth by washing away bacteria. A lack of saliva causes dryness, which causes bacteria to grow and cause bad odor. This is often due to:

sleeping with mouth open

Liver problems

When the liver doesn't work properly, toxins build up in the body. This can lead to a condition called fetor hepaticus, which causes a distinctive, foul-smelling breath.

diabetes

Uncontrolled diabetes causes the body to produce increased ketones, resulting in a fruity or acidic smell to the breath. This can be a sign that blood sugar levels have risen dangerously.