What is the anterior location of most epistaxis?

The anterior location of most epistaxis, or nosebleeds, is primarily attributed to the Kiesselbach plexus. This vascular network is situated in the anterior part of the nasal septum and is formed by the anastomosis of several arteries, including branches from the internal carotid artery (such as the anterior ethmoid, sphenopalatine, and greater palatine arteries).

When trauma, dry air, or an upper respiratory infection irritates the nasal mucosa, it can lead to bleeding in this area, making the Kiesselbach plexus a common site for anterior nosebleeds. Since many of the contributing vessels are relatively small and located superficially, they are more vulnerable to damage, which explains the frequency of bleeding from this plexus compared to other areas.

The Woodruff plexus is located more posteriorly in the nasal cavity and is often associated with posterior nosebleeds, while the maxillary vein and facial artery are not specific sites where epistaxis is known to originate. The focus on the Kiesselbach plexus helps guide treatment and management of anterior nosebleeds, making it crucial for healthcare providers to recognize this anatomical location.