nosebleed definition of nosebleed in the Free Online Encyclopedia.

nosebleed, nasal hemorrhage hemorrhage (hĕm`ərĭj), escape of blood from the circulation (arteries, veins, capillaries) to the internal or external tissues.
..... Click the link for more information. occurring as the result of local injury or disturbance. Most nosebleeds are not serious and occur when one of the small veins of the septum (the partition between the nostrils) ruptures. These will usually stop without treatment or when pressure is applied to the nose. A nosebleed may also occur in association with infections, heart failure, hypertension hypertension or high blood pressure, elevated blood pressure resulting from an increase in the amount of blood pumped by the heart or from increased resistance to the flow of blood through the small arterial blood vessels (arterioles).
..... Click the link for more information. (high blood pressure), arteriosclerosis arteriosclerosis (ärtĭr'ēōsklərō`sis)
..... Click the link for more information. , scurvy scurvy, deficiency disorder resulting from a lack of vitamin C (ascorbic acid) in the diet. Scurvy does not occur in most animals because they can synthesize their own vitamin C, but humans, other primates, guinea pigs, and a few other species lack an enzyme
..... Click the link for more information. , leukemia leukemia (l
..... Click the link for more information. , hemophilia hemophilia (hē'məfĭl`ēə,–fēl`yə)
..... Click the link for more information. , and other disorders. Persistent nosebleeds should be brought to the attention of a physician, who can stop the bleeding with vasoconstrictors and topical anesthetics.

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nosebleed