there is a reason or reasons but the cause may not be apparent. if you are having a nose bleed from the same side then it may be the same bleeding site that is reoccurring. a tiny scab will form on this area but because of the slippery mucous membrane the scab tends to fall off with the least provocation and start to bleed again. this bleeding site can be chemically cauterized by your medical provider if it is identified during an exam. dry air allergies colds blowing the nose picking etc. all can be playing a roll.
why does my nose bleed for no reason? . my nose will bleed after i wash my face which i do gently in the shower. and sometimes it will start to bleed when i'm just sitting watching tv. it's always on the left side. i'm puzzled by this. what could be causing this?