Asthma, bronchial wall inflammation and swelling, while a heavy viscous secretion. Tanxian accumulated in bronchial, bronchial wall of smooth muscle contraction, causing difficulty in breathing and not smooth. So patients will be issued high-frequency voice sharp, Asthma Wong. As to the use of great strength to breathe, it is the phenomenon of asthma.
The cause of asthma led to a combination of factors, including:
(1) genetic factors: asthma is a genetic disease, immunology from the point of view, because of exogenous genetic asthma have allergies caused by physical and may be related to the nervous system and the respiratory cell receptor genetic Stability on.
(2) stimulating factors: the quality of the trachea allergic patients, in some of the factors stimulating, will lead to asthma, such as the inhaled allergens: a lot of dust in the family, in the fine dust of the bacteria or other objects, many Children's asthma allergen, the other inhaled, such as pollen, fungi, animal dander, and so on. Other non-specific inhalation, such as certain chemicals, such as sulfuric acid, chlorine, ammonia, will make the people engaged in certain occupational asthma attack. Repeated respiratory infections, can also lead to an asthma attack. Certain foods, such as fish, shrimp, crab, eggs, etc., will also make some asthma patients disease onset, it should "I quit." Weather conditions: the cold autumn and winter and the transactions induced asthma, the incidence of this disease are particularly high. Emotional tension, mental irritability, is also induced asthma causes. Some patients in sports, will be a spasm of bronchial asthma caused. If patients with smoking or passive smoking regularly, so that asthma is one of the reasons for the deterioration.
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