Acute blood loss
Acute hemolytic anemia
Iron deficiency anemia
Treatment of vitamin B12 deficiency
Rebound effect after thrombocytopenia treatment
Metastatic cancer
Lymphoma
Rheumatologic disorders
IBD
Celiac disease
Kawasaki disease
Nephrotic syndrome
POEMS syndrome
Thermal burn
MI
Severe trauma
Acute pancreatitis
Post-surgery, especially splenectomy
CABG
TB
Acute bacterial/viral infections
Asplenia
Allergic reaction
Medication reactions: vincristine, epinephrine, glucocorticoids, IL-1B, ATRA, thrombopoietin, LMWH
Essential<unk> 
Polycythemia vera
Mixed myelodysplastic and/or myeloproliferative syndrome
Mixed cryoglobulinemia
Cytoplasmic fragments
Bacteremia
Thrombocytosis
Acute blood loss
Thrombocytopenia
Acute hemolytic anemia
Polycythemia
Iron deficiency anemia
Leukopenia
Treatment of vitamin B12 deficiency