鼻窦通过开口与鼻腔相通,因此在正常情况下,窦腔内并不是无菌的。一旦在窦口阻塞或粘液滞留时,鼻寞在客观上可成为细菌的良好培养基。鼻中隔偏曲、鼻息肉、鼻腔或鼻窦内新生物、异物等是造成窦口阻塞和感染的常见原因;变态反应、牙源性感染、萎缩性鼻炎、腺样体炎等也是形成感染的有关因素;还有一些全身性疾病如糖尿病,囊性纤维变性、Kartagener 氏综合征等 The sinus communicates with the nasal cavity through the opening, so under normal conditions the sinus cavity is not sterile. Once blocked in the ostium or mucus retention, nasal loneliness can objectively become a good medium for bacteria. Nasal septum deviation, nasal polyps, nasal or nasal new organisms, foreign body is the common cause of obstruction and infection of the ostium; allergy, odontogenic infection, atrophic rhinitis, adenoiditis is also the formation of infection-related factors ; There are some systemic diseases such as diabetes, cystic fibrosis, Kartagener’s syndrome, etc.