Frequent nosebleeds: What causes them?

Q.	What are some causes of frequent nosebleeds? Karen / Minnesota see response Mayo Clinic hematologist Ruben Mesa, M.D., and colleagues answer select questions from readers.

All Blood & Lymphatic Q&As:

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• Cold agglutinin syndrome: What are the symptoms?
• Complete blood count (CBC): What does it measure?
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• Elevated sed rate: What does it mean?
• Essential thrombocythemia: When is drug therapy necessary?
• Factor V Leiden: Are there different types?
• Frequent nosebleeds: What causes them?
• High eosinophil count: What are the causes?



• High hemoglobin count
• High lymphocyte count (lymphocytosis): What causes it?
• High protein in blood: What causes it?
• High red blood cell count
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• High white blood cell count
• Hodgkin's vs. non-Hodgkin's lymphoma: What's the difference?
• Hyperkalemia: What causes high potassium?
• Low hemoglobin: What causes it?
• Low potassium (hypokalemia): What causes it?



• Low white blood cell count (leukopenia)
• Macrocytosis: What causes it?
• Monoclonal gammopathy: Is it cancer?
• Neutropenia (low neutrophils)
• POEMS syndrome: How is it treated?



• Positive rheumatoid factor blood test: What does it mean?
• Thrombocythemia (high platelet count)
• Universal blood donor type: Is there such a thing?
• Warfarin (Coumadin) diet: Which foods should I avoid?
• Warfarin: Any harm in long-term use?

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