What Are the Causes of Frequent Nosebleeds?

Recurrent nosebleeds (epistaxis) may result from dry air irritation, frequent nose-picking, allergic rhinitis, nasal mucosal erosion, or chronic sinusitis. These conditions can be improved through environmental humidification, habit correction, and targeted medication. However, if nosebleeds occur frequently or involve large volumes of blood, prompt medical evaluation is essential.

1. Dry Air Irritation: Prolonged exposure to dry environments causes rapid moisture loss from the nasal mucosa, increasing capillary fragility. This leads to dryness, cracking, and minor recurrent epistaxis. It is recommended to use a humidifier regularly and gently rinse the nasal cavity with warm water to maintain mucosal moisture.

2. Frequent Nose-Picking: Repeated finger manipulation—such as picking or rubbing the nostrils—causes mechanical trauma to delicate nasal mucosal capillaries. Recurrent injury and repair of these vessels lead to persistent oozing. Avoid nose-picking altogether; for nasal discomfort, gently wipe the external nares instead.

3. Allergic Rhinitis: Upon allergen exposure, the nasal mucosa undergoes a hypersensitivity reaction, resulting in persistent congestion and edema. Vasodilation renders capillaries fragile, making them prone to rupture—even with minimal stimulation—leading to epistaxis, often accompanied by nasal pruritus and sneezing. Under physician guidance, medications such as mometasone furoate nasal spray, loratadine tablets, or cetirizine hydrochloride tablets may be used to alleviate symptoms.

4. Nasal Mucosal Erosion: Physical trauma or recurrent inflammation may cause superficial mucosal breakdown and erosion. Such lesions heal slowly, resulting in recurrent minor epistaxis and nasal stinging pain. Under medical supervision, topical agents—including recombinant human epidermal growth factor gel, erythromycin ointment, and physiological saline nasal spray—may help relieve discomfort.

5. Chronic Sinusitis: Persistent low-grade sinus inflammation leads to continuous discharge that irritates the nasal mucosa. Chronic mucosal congestion predisposes patients to recurrent epistaxis, along with nasal obstruction and rhinorrhea. As prescribed by a physician, treatment may include enteric-coated eucalyptus-citrus-pine oil soft capsules, cefaclor capsules, or fluticasone propionate nasal spray to improve symptoms.

In daily life, maintain a clean, adequately humidified living environment; practice proper nasal hygiene; avoid physical contact or trauma to the nasal cavity; and follow a light, balanced diet—all of which contribute effectively to protecting the nasal mucosa.