The most common airborne irritant is cigarette smoke. Smoke from a wood burning stove can also be irritating to sensitive nasal passages. In addition, those who work around chemicals may be prone to nosebleeds. Industrial Safety and Hygiene News lists several workplace chemicals that can be damaging to nasal membranes. Fiberglass and talc can dry out nasal passages when inhaled. Chromates are known to damage the tissues of the nasal septum. Ammonia and chlorine are strong irritants of the lungs and respiratory system. If you work among these irritants, stay hydrated to keep your body healthy and nasal membranes well lubricated.
It is not surprising that a blow to the face can cause a nosebleed, and the abundant blood supply to the nose means that an injury can result in a real gusher. If you are hit in the nose or face with a ball, run face first into a door, or your nose has the misfortune of meeting up with a fist, follow the usual steps to stop the flow of blood. If your nose continues to bleed for more than twenty minutes, or you suspect a broken nose or internal bleeding, seek medical attention.
3. Polyps or Tumors
Chronic inflammation of the nasal lining can cause nasal polyps. Nasal polyps are small noncancerous growths which often have no symptoms, but in some cases can grow to block your nasal passages. Inverting papillomas are benign (noncancerous) tumors that could possibly develop into cancer. While cancerous tumors of the nasal passages are rare, if you have frequent or unexplained nosebleeds you should consult your physician. Your doctor can rule out cancer of the nasal sinuses or cavities.