Most people with<unk>  are without symptoms at the time of diagnosis, which is usually made after noting an elevated platelet level on a routine complete blood count (CBC). The most common symptoms are bleeding (due to dysfunctional platelets), blood clots (e.g., deep vein thrombosis or pulmonary embolism), fatigue, headache, nausea, vomiting, abdominal pain, visual disturbances, dizziness, fainting, and numbness in the extremities; the most common signs are increased white blood cell count, reduced red blood cell count, and an enlarged spleen.
Essential thrombocythemia
Refractory cytopenia of childhood
Polycythemia vera
Transient erythroblastopenia of childhood
Primary myelofibrosis
Chronic neutrophilic leukemia
Drug-induced thrombocytopenic purpura
Aplastic anemia