What is the cause of rhinitis in teenagers?

Once the young people suffering from rhinitis will not only affect the patient's health, but also affect their studies, we are in the side of rhinitis patients, we can see that they often constantly sneezing at the disease onset time, in addition to these patients will be Liu Xiaqing nose, but for teenagers why suffer from rhinitis?
(1) the body resistance and the ability to adapt to the outside world are poor, prone to colds, upper respiratory tract infection and acute infectious diseases (such as measles, whooping cough, fever and influenza), sinusitis is often secondary to the disease.
(2) prone to secondary infection of nasal foreign body and nose trauma. The most common pathogens are Streptococcus pneumoniae, Streptococcus pneumoniae, and Staphylococcus aureus.

(3) hypertrophy of tonsils or adenoids, and cleft palate and posterior nares atresia affect normal breathing.
(4) congenital immune dysfunction or atopy.
(5) swimming or diving in dirty water.
(6) respiratory allergy. Respiratory allergies can be year-round or seasonal, can cause allergic rhinitis, and gradually delay, become chronic sinusitis.
(7) cilia immobility syndrome. The distribution of a large number of nasal mucosa epithelial cilia formation, mucociliary system of the respiratory tract, nasal cavity to remove bacteria and viruses, fungi and dirt, ensure lower respiratory tract clean and sterile, all causes the cilia movement disorder, can indirectly lead to sinusitis.
Why do teenagers suffer from rhinitis experts we have demonstrated very clearly, sometimes we person is allergic, will certainly suffer from rhinitis or other allergic diseases, but if necessary, we can in clinical an allergen, see what allergy control work, so that we can be to make a good disease, avoid rhinitis attack.