- Atopic dermatitis - allergic inherited
- How is
Atopic dermatitis - is a very common, chronic skin disease often
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Which occurs in a significant proportion of the world population. Most often, this violation can be regarded as a kind of allergic reaction
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or hypersensitivity. Many people have a genetic predisposition to the development of atopic dermatitis; He is often seen in several members of one family. The distinctive features of atopic dermatitis is a skin rash and itching.
The word "dermatitis" means inflammation of the skin. "Atopic" refers to diseases that are inherited, and are often found in conjunction with other disorders. Atopic dermatitis often occurs in young children. Many of them, when they get older, begins long-term or permanent remission, although the skin can still stay dry and prone to irritation.
Triggers of atopic dermatitis can be dry skin, seasonal allergies, the use of aggressive cleaning agents, some cosmetics, as well as cold weather. Environmental factors can also activate symptoms of atopic dermatitis in people who have inherited the susceptibility to this disease.
Atopic dermatitis with about equal frequency in men and women; He is the cause of 10% -20% of all visits to the dermatologist. This disease is most common in infants and preschool children, and with age the likelihood of developing the disease is significantly reduced. Scientists estimate that 65% of patients with this disorder symptoms appear during the first year of life, and 90% - up to 5. After 30 years, the probability of disease atopic dermatitis becomes very small; usually it is the result of human presence in severe climatic and / or environmental conditions. People who live in large cities and in areas with low humidity, are at risk for the development of atopic dermatitis.
The exact cause of atopic dermatitis
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unknown, but it is assumed that its development is the result of exposure to a combination of genetic and environmental factors. Apparently, people who are prone to development of atopic dermatitis, there is an inherent tendency towards hypersensitivity and occurrence of skin itching. Scientific evidence suggests that this disease is associated with other so-called atopic disorders such as hay fever and asthma, these disorders are observed in many people with atopic dermatitis
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. Often, children who have atopic dermatitis went into remission, to further develop hay fever and / or asthma. Although one disorder does not necessarily cause the other, they can be connected, which may in the future help to better understand the nature of atopic dermatitis.
Although emotional factors, in some cases, enhance or initiate the symptoms of atopic dermatitis, they obviously are not its main cause. Previously it was assumed that emotional disorders are the cause of atopic dermatitis, but now it is clear that it is not.
Atopic dermatitis is not contagious and can not spread from one person to another by direct contact with the skin.
Although symptoms may vary in different patients, the most common symptoms of dermatitis are dry skin, itching, and redness. Most often the disease affects the skin on the backs of the knees, hands and face.
Itching is the main hallmark of atopic dermatitis. Often it is so strong that even adults can be difficult to hold back, not to comb the skin. Itching is particularly strong in the night; Many patients also noted increased itching in the evening when they come home from school or work, and external stimuli cease to distract them from their own bodily sensations. Due to the intense scratching the skin may redden much, and in some places it gets tough, rough. Since this can increase the risk of various infections, atopic dermatitis treated.
For the diagnosis of atopic dermatitis is usually sufficient visual study of the symptoms and examination of the patient history. For example, the probability of the development of atopic dermatitis is especially great for those in whose personal or family history of asthma or hay fever. If the doctor has doubts about the diagnosis, a biopsy may be needed.