Bad breath, also known as halitosis, can negatively impact personal and professional life. Common causes include poor dental hygiene, recent food consumption, and dehydration. Understanding these factors can help improve mouth odor.

What Is a Bad Odor?

Bad breath can either be a chronic problem or occur frequently. You should understand that both could be embarrassing. Bad breath is also referred to as embarrassing halitosis and in some cases, it can cause anxiety. Hence, products like gum, mouthwashes, mints, and other edible things are introduced to fight bad breath. Getting rid of bad breath is possible with some simple tips.

Symptoms of Bad Breath

Symptoms of bad breath can be identified before another person experiences it. Below are the most common symptoms of bad breath.

  • Constant dry mouth
  • Change in taste
  • You may find a white coat on the tongue
  • You may face postnasal drip 
  • Clearing throat frequently
  • Build-up around the teeth

Causes of Bad Breath

What medical conditions cause bad breath? There are several reasons that you have a bad mouth odor. We have clubbed the most common reasons for bad breath.

Bad Oral Hygiene

If you do not maintain your teeth clean that may lead to harmful bacteria being stayed on the teeth, tongue, or gums. These bacteria generate sulfur compounds that create a smell like rotten eggs. The latest research shows that the upper side of the tongue, also called the dorsum, is the main source of these compounds among patients who experience gum problems and also among healthy individuals.

Gum disease

It occurs due to swelling of gums, particularly where you can’t clean with a toothbrush and floss. Poor oral hygiene may lead to dental plaque accumulations. It is a common sign of gingivitis that is the first stage of gum disease.


Not only gum disease, but cavities also play a role in trapping food debris and bacterial plaque which can cause halitosis.


Another important reason for halitosis is saliva. The intensity of sulfur compounds may increase due to the reduction of saliva flow reduction(also known as xerostomia.) Saliva helps keep bacteria and smelly breath at bay.


Ketones in the breath of diabetes cause a sweet-smelling odor that may come from the mouth. It happens when the blood glucose is imbalanced.

 Gastrointestinal Problems

If you smell a ‘rotten egg’ means your stomach is being refluxed.

Lung Disease or Infection

If you are suffering from pneumonia, bronchitis, or lung cancer, it may affect breath smells while exhaling.


Not drinking enough water or being on medication may lead to dehydration that can cause bad breath and a change in taste.

Bad breath can be cured if you improve your oral hygiene. Follow these simple steps to maintain your mouth’s odor.

  • Brush your teeth twice or after eating
  • You should floss a day
  • Clean you tongue
  • Drink water to avoid dehydration
  • Modify your diet
  • Clean dental appliances

Here are some Tips to reduce bad breath .