what causes bad breath from the stomach


If bad breath bothers others, or if you have a friend who is embarrassed by bad breath, you can help yourself and your friends by reading more. The good news is that the causes of bad breath are usually treatable and curable. What causes bad breath from the stomach?

In the following, we intend to answer the above question.

By recognizing the causes of bad breath, this annoying problem can be easily treated

Doctors call bad breath halitosis. It is not uncommon for people with halitosis to be confused about the cause of their bad breath.

These people may resort to regular use of chewing gum and sprays and mouthwash pills, which certainly will not be free of chronic side effects of these products.

Bad breath will undoubtedly have a negative effect on social relationships, the workplace, education and emotional relationships.

Bad breath and mouth odor may be a sign of a medical disorder, so recognizing the cause of bad breath can both improve the quality of relationships and life of a person with halitosis and may also save a person from a dangerous disease such as lung cancer or kidney failure.


Bad breath

How is halitosis diagnosed by a doctor?

Symptoms associated with halitosis

What causes bad stomach and mouth odor?

Bad breath due to oral causes

Hormonal changes and bad breath and breathing

Bad breath due to food

Bad breath and cigarettes

Internal diseases associated with bad breath

Bad breath in the morning



Bad breath

We said that the medical term for the above term is halitosis. Sometimes in some books, in order to show the severity of bad breath, they use the terms (cancer of bad breath). Of course, there is no such thing as a bad smell cancer or tumor !!

Statistics show that in a normal population, one in five people has halitosis in its various spectrums.

Bad breath or halitosis can be treated in many cases. Knowing the effective causes of bad breath and stomach or halitosis will definitely help you to solve this annoying problem.

Bad breath is often not a serious cause, but in prolonged cases, it is better to consult a doctor.

Doctors have another term for halitophobia or false halitosis. People with this disorder mistakenly think they have bad breath, which is not the case at all. Even if their doctor says they do not have bad breath, they will still not believe it.

These people must consult a psychiatrist.


How is halitosis diagnosed by a doctor?

In addition to clinical and direct methods for inhaling bad breath, for more accurate diagnosis, there are tools and methods, some of which are listed below.


  • Gas ​​chromatography:

In this method, three compounds containing solaro or sulfur are used


  • Halimeter:

This sensitive instrument is used to detect cases in the mouth and breathing. Halliburton can also measure small amounts of sulfur.


  • Beta-galactosidase test:

Elevated levels of an enzyme called beta galactosidase can cause bad breath, which can be measured by testing for this enzyme.


  • BANA test:

Bacteria can secrete substances that cause bad breath. This test will measure the production of these bacteria.


Symptoms associated with halitosis

One or more of the following symptoms are usually associated with bad breath or halitosis:

  • Dry mouth
  • Existence of a cover on the tongue
  • Changes in the taste of the mouth and the sense of sour taste or unpleasant taste
  • Sore throat


What causes bad stomach and mouth odor?

The causes of halitosis are varied. Bacteria that live in the mouth and throat can cause bad breath. Bacteria in the oral cavity break down the food consumed. These bacteria break down proteins and sometimes even the cells lining the oral tissue, and during the process of breaking down these substances, they produce compounds that contain sulfur. These compounds contain sulfur, which is a major cause of bad breath. Doctors believe that in eighty-five percent of cases, the cause of bad breath is oral problems, and the other fifteen percent have causes that are related to problems outside the mouth.


Causes of halitosis or bad breath:

  • Stinky breathing following smoking
  • Bad breath due to eating certain foods
  • Bad breath due to mouth and tooth problems
  • Bad breath due to diseases and disorders of various body systems and internal diseases


Bad breath due to oral causes

  • Teeth and their problems:

Rotten teeth

Loss of the coating used to fill the tooth

Improper tooth restoration


  • Gums and their problems:

Tooth damage if left untreated can lead to damage to the gums. The gums, which are the mucous tissue around the teeth, are damaged and become inflamed, red, swollen and bleed Not brushing or brushing incorrectly can cause food to remain inside the gums and create a foul odor.


  • Tongue:

Long taste buds or hairs on the tongue, especially in the tip of the tongue can be a cause for bad breath.


  • Orthodontics:

Stuck food in side in the orthodontic system and broken down by bacteria is associated with bad breath


  • Artificial teeth:

Stuck food on the dentures is one of the causes of bad breath, and bacterial plaque forms on your teeth as a sticky yellow plaque after not brushing for a while, which is the same as dental plaque and causes bad breath.


Hormonal changes and bad breath and breathing

Pregnancy is considered by doctors to be one of the most common causes of halitosis

Many hormonal changes occur during pregnancy in the pregnant woman. Changes in estrogen and progesterone levels increase dental plaque or bacterial plaque. These plaques produce sulfur due to bacterial activity, which can cause bad breath.

It is said that even in women with monthly bleeding, as saliva decreases and the mouth becomes drier, the sulfur content in the mouth will be three hundred times higher than at other times.


Bad breath due to food

After eating onions, garlic, spices and some fragrant vegetables, a bad odor is produced that reaches the throat, mouth and nose and makes the breath stink.

If you eat a lot of sugary foods, know that oral bacteria convert these sugars into acidic, sour-tasting substances that cause bad breath. Diets high in carbohydrates are associated with bad breath.

If you have a high-protein diet, know that protein breakdown is associated with the production of sulfur-containing compounds, and that sulfur dioxide is a major cause of bad breath. Alcoholic beverages and even tea and coffee can affect bad breath.


Bad breath and cigarettes

Cigarette itself directly causes severe bad breath. In addition to this direct effect, smoking causes inflammation and damage to the gums and mucous membranes of the mouth, which can be accompanied by the growth of bacteria, sulfur production, infection and bad breath.


Internal diseases associated with bad breath

  • Lung cancer
  • Diabetes:

If you have uncontrolled diabetes, know that your gums and teeth are very prone to damage. Inflammation, gum damage, and dry mouth are very common in people with uncontrolled diabetes. The body of a diabetic person will not be able to fight bacteria and infect them. Doctors say that if a diabetic person breathes fruit or smells like acetone, it is more likely to indicate a very serious and dangerous complication called diabetic non-marital acidosis or DKA. This complication is more common in type 1 diabetes or insulin-dependent cases. In this complication, because the body does not have enough insulin, it will use fats to produce energy. Burning fats produces waste products such as acetone, hydroxybutyric acid and acetate, which are released into the bloodstream and cause bad breath.


  • Kidney failure:

People with kidney failure may smell like fish because of the toxins in their blood, which are caused by the kidneys' inability to detoxify the blood.

Accumulation of these toxins in the body and their entry into the bloodstream causes the smell of fish to breathe.

  • Algerians
  • Discharge behind the throat:

Regarding the above two causes, we must say that respiratory infections such as inflammation of the upper and lower airways of the throat can both lead to discharge from the back of the throat and bad breath.

Allergies, nasal congestion, etc. cause you to breathe through the mouth. Breathing through the mouth increases dry mouth and further growth of bacteria and the production of gallstones and bad breath.

  • Tonsil stones:

Bad breath is a common cause

  • Intestinal problems such as intestinal obstruction, bloating or constipation:

They can cause a stool-like odor in the mouth.

  • Bronchiectasis:

The dilation of the airways in the lungs is called bronchiectasis. In these dilated ducts, secretions accumulate and cause bad breath.

  • Pneumonia or lung tissue infections
  • Gastric acid reflux into the esophagus:

Return of stomach contents to the esophagus, even in small amounts, will cause bad breath

The presence of H. pylori infection in the stomach is one of the reasons for bad breath.

  • Stomach tumors


Bad breath in the morning

It is normal for bad breath in the morning to be unpleasant because saliva decreases during sleep and the mouth becomes drier and the bacteria will be more active, thus releasing more sulfur.

People with sleep apnea who either sleep with their mouths open or snoring are more likely to have dry mouth, and bad breath will definitely be more annoying in the morning.

Remember to add the following causes to the causes of bad breath in children:

  • Swallowing foreign body
  • Existence of a foreign body in the nose
  • Inflammation of the tonsils and sinuses


The final words

Finally, it should be said that bad breath can be due to medications used by a person, some types of supplements, some chemotherapy drugs and phenothiazines and also taking some vitamins in high doses can be associated with bad breath.

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