Definition Infection of mastoid antrum or mastoid air cells is called as mastoiditis. B) Acute Mastoiditis Aetiology - it is mainly caused by acute otitis media In otitis media following factors are responsible A) Inadequate drainage : if the exudates is not draining well infection may spread to the mastoid B) Virulence of organisms : The infection may spread if the organisms are virulent. C) Lowered resistance : Because of the disease like dehydration and diabetes D) Inadequate or improper Antibiotics : E) Cellular mastoiditis : are more likely to be involved a) latarrhal mastoiditis b) Coalescent mastoiditis a) latarrhal mastoiditis It is caused by acute supportive otitis media, there is congestion of the mucosa of the mastoid. Clinical features : 1) pain : recurrence of pain which was present with acute otitis media it became more severe and boring in character in the mastoid region 2) Constitutional symptoms : Body ache, headache, malaise, fever, weakness. 3) Otorr...