Bad breath, medically called halitosis, can result from poor dental health habits and may be a sign of other health problems. Bad breath can also be made worse by the types of foods you eat and other unhealthy lifestyle habits.
Mostly, all the food eaten begins to be broken down in your mouth. If you eat foods with strong odors (such as garlic or onions), brushing and flossing — even mouthwash merely covers up the odor temporarily. The odor will not go away totally until the foods have passed through your body.
As food particles break down in the mouth, bacteria enlarge, resulting in bad odors. Onions, garlic, and certain spices are general bad-breath cause.
Tobacco products- Smoking tobacco also results in a smelly breath, as does chewing tobacco.
Poor dental habits- Not flossing or brushing your teeth regularly is a common cause of bad breath. This occurs when tiny bits of food stay trapped in your mouth. Your tongue can be another bad-breath cause as bacteria coats it, causing foul odors.
A situation called a dry mouth to be a bad-breath cause as saliva in the mouth is reduced. Dry mouth is a common reason for morning breath, especially in people who sleep with their mouth open.
Dental infections-Tooth decay, gum disease, surgical wounds, and dying teeth are all reason of bad breath.
Postnasal drip- Mucus that hardens in the tonsils can be a reason of bad breath. Chronic postnasal drip and sinus drainage are also bad-breath causes.
Other serious causes- Some types of cancer and metabolic diseases can leave a distinctive breath smell. Talk to your doctor if you detect a metallic or other odor.
Some people worry too much about their breath even though they have little or no mouth odor, while others have bad breath and don’t know it. Because it’s hard to assess how your own breath smells, ask a close friend or relative to confirm your bad-breath worries.