Causative Factors

• Environmental - Environmental factors include temperature and dryness of the air.
• Local - Local factors include upper respiratory infections (colds), nasal drug inhalation, nasal tumors, nasal septal deviation, too vigorous nose blowing, and nose picking.
• Systemic - Systemic factors include high blood pressure, arteriosclerosis, and bleeding problems.
• Medications - Certain medications can increase bleeding: aspirin, ibuprofen/Motrin, heparin, and coumadin.