High Red Blood Cells (Polycythemia) Signs & Symptoms (& Why They Occur) JJ Medicine Kho Tổng Hợp 345,261 3 năm trước Add Nghe mp3 Facebook Tweet XEM MÔ TẢ High Red Blood Cells (Polycythemia) Signs & Symptoms (& Why They Occur) High levels of red blood cells, a condition known as polycythemia or erythrocytosis, can be caused by a condition known as polycythemia vera, or it can be a consequence of environmental (high altitude) or pulmonary diseases (like chronic obstructive pulmonary disease, COPD). In this lesson, we discuss the signs and symptoms of having too many red blood cells and why those signs and symptoms occur. I hope you find this lesson helpful. If you do, please like and subscribe for more lessons like this one! JJ **MEDICAL LEGAL DISCLAIMER**: JJ Medicine does not provide medical advice, and the information available on this channel does not offer a diagnosis or advice regarding treatment. 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