The presence of erythroblasts in the blood, usually found in haemolytic anaemia.
The presence in the blood of the nucleated precursors of the red blood cells (erythroblasts). This may occur when there is an increase in the rate of red cell production, as in hemorrhagic or hemolytic anemia, or in infiltrations of the bone marrow by tumors, etc.
A condition marked by erythroblasts in the blood.