When to see a doctor
By Mayo Clinic staffA high red blood cell count is rarely an unexpected finding or simply discovered by chance. It's usually found when your doctor has ordered tests to help diagnose a condition you're already experiencing. Talk to your doctor about what these results mean. A high red blood cell count and results from other tests may indicate the cause of your illness, or your doctor may suggest additional tests to assess your condition.
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- Polycythemia vera (primary polycythemia). The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/sec11/ch141/ch141d.html#sec11-ch141-ch141d-694. Accessed Sept. 30, 2010.
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- Renal cell carcinoma. The Merck Manuals: The Merck Manual for Healthcare Professionals. http://www.merck.com/mmpe/sec17/ch241/ch241f.html?qt=kidney%20cancer&alt=sh. Accessed Sept. 30, 2010.
- Blood studies: Hematology and coagulation. In: Fischbach FT, et al. A Manual of Laboratory and Diagnostic Tests. 8th ed. Philadelphia, Pa.: Lippincott Williams & Wilkins; 2009:92.

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