What causes asthma? What causes asthma?

Asthma can be caused by several causes:

1. Internal factors. Asthma is a genetically related disease. If a parent or a related person has an allergic disease or asthma, they are much more likely to develop asthma than others.

2. External factors. The most important external factors are many factors that cause allergies, which are divided into allergic asthma and non-allergic asthma. In the indoor environment, volatile substances in decoration materials, furniture, dust mites on plush toys, pillows, and bedding can induce asthma.

Another external factor is the outdoor environment. In the north, spring and autumn are the peak seasons for asthma, and there are also some common triggers related to occupation, and some people work in special jobs and have triggers in their work environment.

Another external factor that cannot be ignored is smoking. Smoking is associated with asthma, especially in pregnant women, who are more likely to develop asthma in the future. In addition, some allergic diseases in early childhood can also trigger asthma.

For example, children often have infantile eczema, and even if the parents do not have allergic diseases or asthma, they are more likely to develop allergic diseases in the future.

Asthma is currently considered to be a genetically related disease, which is more complex and is only a polygenic genetic predisposition. The most important is contact with allergens, the most common allergens such as indoor allergens, such as dust mites or pollen, or the fur of some animals; There are also occupational factors, such as workers in flour mills, or pharmaceutical workers who keep pigeons or mushrooms, or antibiotics such as penicillins, cephalosporins, etc.; It is also related to drugs and food additives, aspirin is the most common drug that induces asthma; In addition, environmental factors are also a contributing factor, such as air pollution or smoking; There are also viral infections of the respiratory tract, which are the most common causes of asthma; It is also related to the patient's mood or strenuous exercise.

1. Genetic factors.

At present, bronchial asthma is considered to be a polygenic genetic disease with obvious familial aggregation tendency, and its occurrence is affected by both genetic factors and environmental factors.

2. Allergens 1Indoor and outdoor allergens.

Such as dust mites, pets, cockroaches, pollen, grass pollen, etc.

2.Occupational allergens.

Such as paints, reactive dyes, etc.

3.Food allergens.

Such as milk, eggs, fish, shrimp, crab, etc.

3. Precipitating factors.

Such as exercise, cold air, environmental pollution, smoking, drugs (such as aspirin, etc.), mental and psychological factors, etc.

The causes of asthma mainly include genetic factors and environmental factors. Asthma is hereditary, a polygenic genetic disease, with familial onset and a higher incidence of blood relation. Of course, genetic factors are only the predisposition to the onset of asthma, while the environment is the predisposing factor of asthma, such as exposure to allergens, consumption of allergic foods, use of allergic drugs, etc.

The ** of asthma is mainly dilated bronchi.

Allergens are the most common causes of asthma, and in daily life, the more common allergens that cause asthma are: common substances such as dust in the air, dust, pollen, carpets, clothing fibers, and even urine.

Asthma can be caused by the weather or it can run in families.

It is caused by genetics and environment.

Just diagnosed with cough-variant asthma.

It's not very clear that most people think that it is caused by a combination of internal and external factors, which are hereditary factors, and external factors, of course, are caused by the differences in the environment and the influence of individual individuals on some related factors. Asthma patients also have a relatively high prevalence in their families.