Injudicious cauterization of both sides of the septum causes a
perforated septum when death of nose tissue occurs.
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Cosmetic surgery of the nose may cause perforated septum when it
damages the septum's blood supply.
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The causes of a perforated septum are wearing ornaments in the
nose; sniffing cocaine; having the septum cauterized; rhinoplasty;
diseases; toxic vapors.
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A perforated septum occurs when the blood supply that supplies
nutrition to the cartilage is shut off producing a hole or
perforation.