Kiesselbach's area, also Kiesselbach's plexus, Kiesselbach's triangle, and Little's area, is a region in the anteroinferior part of the nasal septum, where four arteries anastomose to form a vascular plexus called Kiesselbach's plexus. The arteries are[1]
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Ninety percent of nose bleeds (epistaxis) occur in Little's area, as it is exposed to the drying effect of inspiratory current.[2][3]
Kiesselbach's plexus is named after Wilhelm Kiesselbach (1839-1902) a German otolaryngologist.