Potential causes of a nosebleed.
1. Dry air: Dry air can cause the delicate blood vessels in the nose to become dry and crack, leading to a nosebleed.
2. Nose picking: Digging or picking at the inside of the nose can cause trauma to the blood vessels and lead to a nosebleed.
3. Allergies: Allergies can cause inflammation in the nasal passages, making the blood vessels more susceptible to bleeding.
4. Upper respiratory infections: Infections such as colds or sinusitis can cause congestion and inflammation in the nasal passages, increasing the risk of a nosebleed.
5. Trauma: Any type of trauma to the nose, such as a blow to the face or a foreign object inserted into the nose, can cause a nosebleed.
6. High blood pressure: Hypertension can cause the blood vessels in the nose to become more fragile and prone to bleeding.
7. Blood thinners: Medications that thin the blood, such as aspirin or warfarin, can increase the risk of nosebleeds.
8. Deviated septum: A deviated septum, or a displacement of the cartilage that divides the nostrils, can cause chronic nosebleeds due to the disruption of blood flow.
9. Chemical irritants: Exposure to irritants such as tobacco smoke, chemical fumes, or pollution can irritate the nasal passages and lead to nosebleeds.
10. Underlying medical conditions: Certain medical conditions such as leukemia, hemophilia, or blood clotting disorders can increase the risk of nosebleeds.