| http://www.w3.org/ns/prov#value | - Also seek help if:you often have more than one nosebleed a week (it may be due to an undiagnosed underlying condition), you have had an injury to your head, such as a blow, or a fall (you may have broken your nose), or you are taking an anticoagulant (a blood-thinning medicine), such as warfarin, and the bleeding does not stop, or re-occurs.
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