“…For the technological cause, the maintenance of intubation, unskilled anesthesiologists, improper usage of stylets, overinflation of cuffs, rupture of cuffs, no pressure reduction of cuffs during posture changes are included. Anatomic causes include congenital malformation of airway, tracheobronchial transformation due to the lymphatic gland or tumor, inflammatory lesions, chronic obstructive bronchial diseases [10]. This is frequent especially for females because it is easy for the bronchus to be ruptured when the depth and size of the tubes are not appropriate due to a smaller trachea in women who are relatively shorter compared to men.…”