Rupture of the blood vessels that are very close
to the surface of the lining of the nose.
An abnormal growth (polyp
or tumor) in the nose or sinuses.
Health conditions that affect
normal blood clotting.
Abnormal blood vessels in the nose, such as
with Osler-Weber-Rendu syndrome. This syndrome is passed in families
(inherited). The abnormal blood vessels make it hard to control a nosebleed.
A nosebleed that recurs 4 times or more in a week needs
medical evaluation to determine the seriousness of the problem. A nosebleed
that recurs 2 to 3 times in a month may mean that a chronic condition such as
allergies is causing the nosebleeds.
When nosebleeds cannot be
controlled by home treatment, you need to see your doctor.