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Bits in the corners of the mouth: causes and treatment


Biting lips Zayedi in the common people are called cracks in the corners of the mouth, occurring against the background of inflammatory lesions of the oral mucosa and lips of various origins, spreading to the skin. These violations of the integrity of the skin and mucous membranes are in fact only a clinical symptom of an isolated pathology or a secondary sign appearing at the time of the occurrence or recurrence of a certain disease of the internal organs or epithelium of the oral cavity.

Surely, many at some stage of their life have redness, sores, cracks, peeling in the corners of the lips, which are not given serious importance, although this is wrong. If at the beginning of the pathology there is only irritation and redness, then as it progresses, it ceases to be just a cosmetic defect, often recurs, bringing a lot of inconvenience, and constantly bleeding wounds become a gateway for penetration of various infections.

Often you can hear about zadah at a physician, dermatologist or dentist's appointment if angular stomatitis (angnulitis), streptococcal impetigo, angular stomatitis, various forms of cheilitis, anemia, etc. are diagnosed.

Causes of sticking in the corners of the mouth

The main provocative factor of inflammation with the formation of cracks in the corners of the mouth are microbes: streptococci lead to the appearance of streptococcal bunches, fungi of the genus Candida - candidiascotic, or yeast bunches. These pathogens are conditionally pathogenic, are part of the normal microflora of the human body, but with a decrease in the protective functions of the immune system cause limited inflammation of the upper layer of the skin and the epithelium of the mucous membrane. There are many other common causes of cracks in the corners of the mouth.

Traumatic factors

  • Treatment at the dentist . An involuntary traumatic skin lesion in the corners of the lips is possible, if necessary, to open the mouth widely, if molars require treatment or removal, and the use of tools, especially mirrors for examination.
  • Wearing a complete denture . The skin of the elderly is less elastic and drier than that of the young. Everyday manipulations to install and remove the removable design require a wide mouth opening, but still it does not exclude cases of injury to the skin around the lips.
  • Bite change due to lack of teeth . By old age, many lose most of their teeth, which affects the bite. The location of the skin folds changes, saliva can stagnate in the corners of the mouth, leading to maceration of the mucous and skin.
  • Other reasons : frequent yawning, screaming, oral sex, active kisses.


  • Long stay in the cold or wind . Lips are very sensitive to external influences. Without additional protection, with hygienic lipstick applied to them, they quickly crack in frosty weather, intense heat, strong wind, from exposure to sunlight, etc. Temperature drops adversely affect them, especially if there is a disease of the nose structures that does not allow physiological breathing right - through the nose. When drying, you often have to lick them.

Bad habits

  • Smoking Cigarette smoke is toxic to the oral mucosa and respiratory organs.
  • Alcohol use . When alcoholism is reduced immunity. The drinking person aggravates the existing diseases, and he also becomes more susceptible to fungal, bacterial, and viral infections.
  • Permanent holding of any object in the mouth . The habit of nibbling a blade of grass or a match, keeping a pen or pencil in your mouth contributes to infection of the oral cavity with various pathogenic microbes.
  • Poor oral hygiene . With irregular and / or insufficiently high-quality teeth cleaning, caries, gum inflammation (gingivitis and periodontitis), favorable conditions are created for the growth and reproduction of microorganisms.
  • Foreign bodies in the oral cavity in children . Kids due to their age and for knowing the world around them often pull various dirty objects into their mouths, they can eat sand from a sandbox, take a sip of water from a puddle or an open reservoir when bathing, thereby increasing the bacterial load on the body, which is expressed by many manifestations, including biting .

Skin diseases

  • Atopic cheilitis is an allergic inflammatory lesion of the lips. Allergic reactions in the form of skin dermatitis, characteristic more often for young children, occur as a response to food, contact and other types of allergens. Inflammation of the red border of the lips is accompanied by the spread of the pathological process to nearby skin areas, especially the corners of the mouth are affected.
  • Streptococcal impetigo - a contagious skin disease caused by streptococci, with characteristic rashes in the form of small red spots, after a few hours turning into vesicles - flictenes - with a hyperemic swollen base. The characteristic localization of the rash - the skin of the face, torso side surfaces of the limbs. It is often observed above the upper lip, on the chin, in the corners of the mouth. Increasing in size and merging, conflicts lead to the formation of erosion, covered with purulent bloom. When drying out the opened bubbles, yellowish-gray and brown crusts form.
  • Grandular and other types of cheilitis . In the case of a grand heelitis, the ducts of the small salivary glands grow and then become infected. Dryness of the mucous lips, the loss of its elasticity with the further formation of erosion, deep bleeding cracks on the lips themselves, and in the corners of the mouth also contributes to intoxication of the body with microbes and toxins.

Common diseases

  • Tuberculosis . With damage to the tissue of the lungs with Koch's wand, tuberculous bulges may be observed, indicating an active form of pulmonary tuberculosis.
  • Syphilis is a systemic venereal disease affecting the mucous membranes, skin, and major body systems. Under the corner of the mouth, a hard chancre can be masked, which is an element of primary syphilis and occurs at the site of the introduction into the body of pale spirochetes, the causative agents of the disease. It can be formed on any part of the mucous or skin: in men it is more often on the head, trunk or foreskin, in women - on the mucous membrane of the vagina, labia, cervix. Also observed in the corners of the mouth, on the lips or tonsils.
  • HIV infection. The immunodeficiency virus leads to disruption of the immune system, as a result of which the immunity is inhibited, threatening with the addition of secondary infections and the appearance of malignant tumors. One of the signs of disease on the background of immunodeficiency are zaedy.
  • Anemia. A lack of iron in the body can be externally manifested by cracks in the corners of the mouth.

Other reasons for the appearance of zaedy

  • Endocrine diseases, such as diabetes.
  • Hypovitaminosis. Lack of vitamins of group B.
  • Intestinal dysbiosis.
  • Neuritis of the facial nerve.
  • Forced long-term treatment with cytostatics, antibiotics, glucocorticosteroids.
  • Change the pH of the skin + its pollution.
  • Dehydration (dehydration).
  • Long fever.

Classification of cracks in the corners of the mouth

The self-classification of the bunks does not have, but they can be conventionally divided into primary and secondary, depending on the etiological factor. The primary include streptococcal, candidami, grandular, atopic (allergic), exfoliative, and others. To the secondary - syphilitic (chancre), tuberculosis, vitamin deficiencies, etc.

Clinical manifestations of buns in the corners of the mouth

When slit impetigo cracks are formed due to infection with streptococcus. Initially, a small red rash appears, after a few hours these spots are transformed into bubbles (conflict) with transparent content. Over time, the fluid becomes cloudy, turning into pus. The conflict, increasing in size, merge. The accumulation and opening of many bubbles in the corners of the mouth leads to the appearance of slit-like erosion with pus. When drying, yellowish crusts form, under which the process of healing erosion occurs. While yawning, laughing, a healing wound can be torn, children often tear off dried crusts, resulting in a red bleeding surface. Regeneration begins again. After the crust has fallen off, a pinkish-lilac spot, which passes with time, remains in its place.

When Candida docotic zaed, provoked by a yeast-like fungus of the genus Candida, there is no crust on the slit-like lacquer-reddish erosion. The wound itself is covered with easily removed whitish bloom and is surrounded by scales of macerated epithelium. If the mouth is closed, the crack is almost imperceptible. It becomes visible only when opening the mouth. Fungal damage of the oral mucosa and skin becomes possible with a decrease in immunity, prolonged use of antibiotics or cytotoxic drugs that disturb the balance of the microflora of the body. Often the process becomes chronic.

For primary syphilis, chancre is a single small ulcer or erosion of a rounded shape with clear edges and a brilliant bluish-reddish bottom. In contrast to ordinary, zade is not inclined to increase in size, it does not respond to local antiseptic therapy. Soreness and inflammation are absent. At the base of the sore, there is a dense infiltrate, on its surface there is scant serous content, during drying of which crusts form.

In addition to the aesthetic defect of a person, the pain in talking, laughing, eating or washing is worried. It becomes difficult for women to paint their lips, because over time, lipstick, spreading, falls into the wounds, eating away from them. In addition to pain, there is burning and itching of the skin. Eating sour, salty foods or spices aggravates the condition. Particles of food or liquid inevitably fall on erosion, irritating it and contributing to increased pain.

Diagnosis of zaedah in the corners of the mouth

If jars occur frequently, do not heal for a long time, cracks deepen or do not pass by themselves, you should contact your dentist, dermatologist or therapist. After a physical examination with the collection of complaints, visual inspection of the oral cavity and problem areas of the skin, clarification of the alleged causes of pathology will be assigned appropriate diagnostic measures aimed at identifying the disease that led to such manifestations. Based on the alleged cause of the appearance of cracks, you may need to consult a venereologist, an endocrinologist, a neurologist or an allergist.

Required diagnostic methods:

  • Dermatoscopy - a visual assessment of pathologically altered skin areas using a digital or optical dermatoscope, which multiplies the tissue under investigation. The study is necessary for the differential diagnosis of zaedy with a nevus, a malignant neoplasm, hemangioma, etc. Designated for suspected streptococcal impetigo.
  • Skin pH-metry is a diagnostic method that allows to determine the indicators of the acid-base balance of the skin using special pH meters. The disease is detected, depending on whether an alkaline or acidic environment has shifted. Alkalization of the epidermis occurs with eczema, atopic dermatitis. The shift to the acidic side indicates psoriasis.
  • Bacterial seeding of the contents of the conflict with the identification of the pathogen and the determination of its sensitivity to chemotherapeutic drugs.
  • Analysis of the immune status to determine the functional and quantitative indicators of the state of the immune system.
  • Serological studies . It is prescribed to identify the causes of adhesions, for example, to determine antibodies to the pale spirochete that appear in syphilis.
  • Histology and cytology of altered skin . These are optional studies conducted according to indications to exclude the oncological process.

Treatment of buns in the corners of the mouth

Treatment depends on the cause of the pathology and consists of local and general therapy. To eliminate candidiasis, creams or ointments with antifungal effects (lamisil, ifinek, mycosyptin) are applied, applied 2 to 4 times per day on a crack in the corner of the mouth. In tuberculous diseases, emphasis is placed on treating the underlying disease, tuberculosis, with specific anti-tuberculosis drugs. Locally antiseptic processing of the wound is performed with the removal of dead and affected areas of the epidermis.

For exfoliative cheilitis, episodes are treated with physiotherapeutic methods - laser or radiation therapy, ultrasound with hormonal preparations. To enhance immunity, blood ultraviolet irradiation, autohemotransfusion, and vitamin complexes are prescribed. In the treatment of grandeur, they use antibacterial (erythromycin, tetracycline) and hormonal ointments (flucinar and others).

Cracks in atopic cheilitis are eliminated with a hormone-containing ointment, for example, prednisolone or flucinar, which have anti-inflammatory, antipruritic, anti-allergic effects. Inside take antihistamines (claritin, tavegil, telfast).

When hypovitaminosis is the main treatment is to replenish minerals and vitamins. If a violation of their absorption is detected, then the main disease, for example, atrophic gastritis , is treated, thereby eliminating the root cause of vitamin deficiency.

| July 17, 2015 | | 1,704 | Skin diseases , Facial
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