What Causes A Nose To Bleed?

Nose bleed may occur as a result of-
*mechanical injury-sometimes over rubbing the nose causes minor injury in the inner lining of the nostrils,which may lead to single
or both nostrils to bleed.
*hypertension,vitamin deficiency or drug abuse can also be the reason.
*For women, nose bleeds may also occur periodically following the hormonal fluctuations of the menstrual cycle. In a process called vicarious menstruation, surging estrogen levels in the bloodstream can cause the vessels in the nose to fill up, leading to bleeds.

In case of sun stroke or if the body is not able to take a lot of heat especially in summers and extreme climatic conditions, there is a possibility that nose bleeds for some time. Take ice cube in a piece of cloth or handkerchief and place it on the nose for some time till the bleeding stops. Visit a doctor in case bleeding doesn't stops.