Kiesselbach's plexus

Kiesselbach's plexus, which lies in Kiesselbach's area, Kiesselbach's triangle, or Little's area, is a region in the anteroinferior part of the nasal septum where five arteries anastomose to form a vascular plexus. The arteries are:

Retrocolumellar vein

It runs vertically downwards just behind the columella ,crosses the floor of the nose and joins venous plexus on the lateral nasal wall.It is a common site for bleeding in young people.

Ninety percent of nose bleeds (epistaxis) occur in Little's area, as it is exposed to the drying effect of inspiratory currents and to finger nail trauma and is the usual site for epistaxis in children and young adults.

Kiesselbach's plexus is named after Wilhelm Kiesselbach (1839–1902), a German otolaryngologist who published a paper on the area in 1884.

James L. Little, an American surgeon, first described the area in 1879. Little described the area as being "about half an inch .... from the lower edge of the middle of the column [septum]."

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