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What causes blisters on the root of the tongue?
What causes blisters on the root of the tongue?

On the oral mucosa there are many opportunistic microorganisms that are activated when immunity is weakened. Regular food intake, the need to talk - all this leads to the healing of wounds in the mouth. However, why do they arise?

Causes of the appearance of blisters on the root of the tongue

  1. One of the most common causes is the herpes virus. It provokes the appearance of wounds not only on the lips, but also in the mouth. Defects can be quite dense and painful while talking / eating;
  2. In case of impaired immunity, fungi of the genus Candida are most often activated. They provoke the appearance of acne on the sides of the tongue, but other parts of it can also be affected; look like small bumps. White bubbles appear on the uvula;
  3. Launched caries and infectious disease;
  4. Pharyngitis or dermatological abnormalities such as pemphigus;
  5. Hormonal disorder;
  6. Bubbles under the tongue can be a precancerous condition, and also arise from rubbing with prostheses, in the presence of a bad habit - chewing on the cheek;
  7. Allergic reaction to mouthwash or toothpaste, food, etc.
  8. Lichen planus.

Blisters that appear on the root of the tongue in a child

Usually, in babies, this happens when an infection invades the body. A typical example is scarlet fever. However, such diseases have other symptoms, for example, in the case of scarlet fever, it is a sore throat and fever, and rashes also appear on the body. Small bright red dots are observed throughout the week, and then gradually disappear. After they pass, the skin begins to peel off and peel off. It is worth noting that with scarlet fever, the very color of the organ changes:

  • it turns red or crimson;
  • with very swollen papillae;
  • bubbles first hide under a gray-white bloom.

Chickenpox is the second common cause of cloudy blisters in a child. In medicine, this infection is called chickenpox. The rash is observed all over the body. In addition, temperature may occur.

The aforementioned pharyngitis can affect even the smallest. In this case, the rash is dense to the touch and has a conical shape.

Small blisters appear with lichen red; merge into plaques, creating patches that resemble patterns.

The aforementioned herpes, affecting the oral cavity, manifests itself in the form of small bubbles filled with a clear liquid and tightly adjacent to each other. Ripening, those burst, causing severe pain. The disease is accompanied by fever, general weakness and inflammation (enlargement) of the cervical lymph nodes.

Atopic dermatitis is accompanied by fluid-filled blisters.

However, rashes are also observed on the face - on the cheeks, wings of the nose, around the lips. The rash is accompanied by severe itching.

Bubbles on the tongue can appear with allergies. Children are known to be more likely to suffer from unwanted reactions from the body.

  1. One of the manifestations of allergies is reddish or whitish pimples of a small size, which can be located in different areas, move to other parts of the oral cavity.
  2. They usually cause pain when speaking and swallowing, but the body temperature does not rise.
  3. Symptoms are aggravated by repeated intake of the product that provoked the allergy.
  4. It is worth noting that in babies this is caused not only by food, but also by toothpaste and other care products.

Sore throat is a bacterial infection that affects the tonsils. As the inflammation progresses, it spreads to the lymphoid tissues closer to the throat. In this case, white acne and purulent plaque appear. After removal of the pus, reddened lesions and slight swelling are visible. Pimples are painful, cause discomfort, and worsen overall well-being. At the same time, the cervical lymph nodes increase.

In young children, this sometimes happens with dysbiosis and unbalanced nutrition. Such conditions lead to an imbalance in the intestinal microflora, which in turn provokes glossitis - an inflammation of the mucous membrane of the tongue. The epithelium of the papillae begins to divide intensively, they become inflamed. Red or whitish. It is worth noting that they practically do not hurt, but change the sensitivity to hot / cold and acidic foods.

Blisters on the root of the tongue and white coating

When the pharynx and other parts of the oral cavity are affected by curd rashes, thrush, or candidal stomatitis, occurs. As a rule, the reasons are hidden in the weakening of immunity, when the body cannot cope with the active reproduction of the pathogenic fungus. When cleaning the mouth from plaque, bleeding wounds appear, so you should not remove it mechanically.

In addition to the characteristic white bloom, other symptoms appear.

  • the child becomes moody and irritable;
  • refuses to eat;
  • this is due to the fact that the slightest irritation of the oral mucosa is accompanied by severe pain;
  • often the organ is covered with small sores, which also cannot be removed mechanically.

Red, white and other blisters at the root of the tongue: classification according to color


Most often appear with stomatitis or candidiasis. It is worth noting that these two ailments require a different approach, therefore, for an accurate diagnosis, you need to consult a specialist. With candidiasis, a white bloom also appears, which resembles cottage cheese (in consistency). Acne can appear both on and under the tongue. Stomatitis is characterized by the appearance of small pimples, which gradually merge with each other. Moreover, they are accompanied by itching, pain. Candidiasis is treated with antifungal agents, and stomatitis with antiseptics.


They indicate an inflammatory condition such as glossitis. In the latter case, they look like inflamed points that hurt and sore.

  1. Glossitis can occur due to allergies, eating very hot or spicy foods, herpes, and excessive drinking.
  2. Also, a red pimple can be the result of a burn. In this case, a "blister" is a reddened and swollen papilla. As a rule, the burn goes away on its own after a few days.


Like whites, they indicate stomatitis or candidiasis.


Usually appear at the first stage of glossitis. As the disease progresses, they turn red.

Blisters on the root of the tongue and other parts: classification depending on localization

  • A white rash under the tongue may be a symptom of glossitis. It is worth noting that often they first appear just under the organ, and then spread over the entire surface of the organ. This is due to a more humid and warmer environment, which is ideal for bacteria to thrive.
  • A blister under the tongue can appear when eating irritating foods or accidentally traumatizing tissues. Such defects, if not disturbed, pass quickly.
  • When they appear on the root, they cause discomfort: they interfere with speaking and swallowing, and are quite painful. They are associated not only with diseases of the oral cavity, but also of the pharynx, for example, sore throat or pharyngitis. Usually, these are accompanied by an increase in temperature, an increase in cervical lymph nodes, an allergic reaction, etc. Excessively enlarging blisters can make it difficult to swallow and even breathe, so an otolaryngologist should be consulted urgently.
  • At the tip, acne most often appears after an injury, and if an infection gets into the resulting wound, the appearance of an unpleasant formation is almost inevitable. For example, this often happens among lovers of seeds and pistachios. This is due to the fact that such products damage the soft epithelium. Also, bubbles at the tip may appear when the herpes virus is activated.

What if a blister develops?

Regardless of the cause, more careful monitoring of oral hygiene is required. After each meal, it is advisable to treat your mouth with antiseptic solutions. Hot, sour and spicy foods should be excluded from the diet. Food should be soft and not cause additional mucosal injury. It is impossible to open, squeeze out such formations, as this can lead to a complication of the course of the disease.

Before starting treatment, you need to find out what caused the disease. It is on this that further activities depend. The correct diagnosis can be made by a pediatrician (for children), a therapist, an otolaryngologist or a dentist.

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