What Causes Nosebleeds?
2. Dry Air
Another fairly common cause of nosebleeds is dry air. The inside of our noses is kept moist with help from the mucus that lines the interior of the nose. If you are passing a lot of dry air over this mucus then the mucus itself can begin to dry out, and this can result in bleeding.
Moist mucus will usually pass out of the nose easily when needed. When it is dry, however, it can become attached to the delicate skin. Dry air can also cause the lining of the nose itself to become dry, and this may cause it to become broken, also increasing the chances of a nosebleed.
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