<unk>  is a condition where there is an increase in reticulocytes, immature red blood cells. It is commonly seen in anemia. They are seen on blood films when the bone marrow is highly active in an attempt to replace red blood cell loss such as in haemolytic anaemia, haemorrhage.
Reticulocytosis
Lymphocytosis
Lycopenemia
Leukocytosis
Plasmacytosis
Monocytosis
Mastocytosis
Lymphocytopenia