Noun
a disorder characterized by an abnormal increase in the number of red blood cells in the blood
Source: WordNetAbnormal blood cell shapes and children born with polycythemia (a disease in which the proportion of blood volume made up of RBCs increases) can create an overload of RBCs to be processed. Source: Internet
In terms of hematocrit, a value greater than 48 in women and 52 in men is indicative of polycythemia. Source: Internet
The outlook for primary polycythemia without treatment is generally poor, with a life expectancy of about 2 years. Source: Internet