Question

What causes a nose bleed?​

Answer 1

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These things can cause a nose bleed:

• Dry climates or dry, heated air that dries out the inside of your nose

• Picking your nose or rubbing it too hard

• A cold

• Repeated nose-blowing

• A nose injury

• Allergies or allergy medicines that can dry out your nose

• Other medications you’re taking such as certain blood thinners

• A sinus infection

Answer 2

Answer:

The lining of your nose contains many tiny blood vessels that lie close to the surface and are easily damaged. The two most common causes of nosebleeds are: Dry air — when your nasal membranes dry out, they're more susceptible to bleeding and infections.