Rhinitis is not a strange place for most people, because the disease has occurred in many of the people around us, and how much we can understand some of the diseases to people brought harm. In fact, rhinitis is mainly nasal mucosa and other tissue inflammation, generally there will be symptoms of congestion or edema. But for the occurrence of rhinitis caused by some factors we understand how much? Here we come together to find out about it
(A) genetic factors
There is a family history of allergic disease susceptible to the disease. Patient family with more asthma, urticaria or drug allergy history. In the past, this patient is an atopic individual, and its ability to produce IgE antibodies in vivo is higher than normal. But in recent years, the authors found that there was no significant difference between the twin and the general population.
(B) nasal susceptibility
The susceptibility is due to the frequent stimulation of the antigenic substance, but its susceptibility is the ability of the mast cells, the number of basophils and the ability to release the chemical medium in the nasal mucosa. It has been confirmed that the number of cells in the nasal mucosa of patients with allergic rhinitis is not only higher than that of normal people, but also has a strong ability to release chemical mediators.
(C) Antigenic substances
The antigenic substances that stimulate the body to produce IgE antibodies are called allergens. The allergen material once again into the nasal mucosa and the corresponding IgE binding caused by allergic reactions. Cause the disease of the allergen according to its way into the human body is divided into two categories of inhalation and food:
1. Inhalation change
(1) pollen is not all plant pollen can cause disease. Only pollen that has a large amount of pollen, a wide vegetation area, a large allergen and is spread by the wind is most likely to become an allergen. Due to the differences in vegetation varieties, pollen with allergenicity in different areas is also different.
(2) fungi are widely distributed in nature, mainly in soil and corrupt organic matter. The hyphae and spores are allergenic, but with strong spores.
(3) house dust mite arthropod door spider gang. Adult size is generally 300 ~ 500μm. Mainly parasitic in every corner of the room, which mattresses, pillows, sofa mats, etc. in the most dust. Mite excrement, eggs, scaling and its broken body, can become allergens.
(4) animal dander animal dander is one of the strongest allergens.
(5) for susceptible individuals if the long-term contact with the animals, can be sensitized. Even after a small amount of deodorization, but also to stimulate the nose symptoms.
(6) indoor dust is caused by perennial rhinitis one of the common allergen substances. Its composition is quite complex, is a variety of substances hodgepodge, including animal, plant and chemical and other substances.
2. Ingestion allergen
Refers to the digestive tract into the human body caused by nasal symptoms of allergen substances. Its role in the nasal mucosa is very complex, it is still not clear, milk, eggs, fish, meat, fruit, and even some kind of vegetables, can become allergens.
The above is today to introduce some of the risk factors for rhinitis, we read after reading is not a certain understanding of it? For some of the above immutable factors we may not have the means to prevent, but there are some factors to control their own or can do, I hope friends must pay attention to, do not wait until the disease has come back to regret.

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