Nasal bleeding is a common symptom that varies significantly between different age groups. Recent medical research and clinical observations indicate that nasal bleeding typically occurs in two main areas: the anterior and posterior parts of the nasal cavity. The distribution of these bleeding areas differs notably between young and older individuals.

In young people, nasal bleeding most commonly occurs in the anterior part of the nasal cavity, specifically the lower anterior part of the nasal septum, known as Kiesselbach’s plexus. This area is a critical vascular network, consisting of terminal branches from the internal and external carotid arteries. These blood vessels converge in the lower anterior septum, forming a network of superficial and exposed vessels.

Due to the superficial nature of these blood vessels, they are easily exposed to external irritants, which can lead to ruptures and bleeding. The bleeding can range from blood-streaked nasal discharge to severe hemorrhaging, including pulsatile bleeding from small arteries. Such bleeding episodes can be alarming and may require urgent medical attention.

In children and adolescents, the incidence of anterior nasal bleeding is related to their anatomical structure and lifestyle habits. The anterior part of the nasal cavity is a vascular convergence area, and habits such as nose-picking can exacerbate bleeding. Additionally, environmental factors like dry air and irritants can cause damage to the mucous membrane, leading to bleeding.

In contrast, older adults are more likely to experience nasal bleeding in the posterior part of the nasal cavity. As people age, vascular changes such as arterial sclerosis occur, particularly in the posterior nasal cavity where a venous plexus exists. Fluctuations in blood pressure can impact these veins, leading to rupture and bleeding in the posterior nasal cavity.

Older adults are more prone to posterior nasal bleeding due to these age-related vascular changes, and the bleeding can be more severe and challenging to manage compared to that in younger individuals.

Overall, the occurrence of nasal bleeding is closely related to age. Young individuals primarily experience bleeding in the anterior nasal cavity, while older adults are more likely to have bleeding in the posterior nasal cavity. These differences not only reflect physiological variations across age groups but also highlight the need for targeted preventive and management strategies. For young people, protecting the nasal cavity from irritants and avoiding harmful habits is crucial, while older adults should monitor blood pressure and maintain vascular health to prevent nasal bleeding.