Coronavirus disease 2019 (COVID-19) is caused by a novel coronavirus called SARS-CoV-2, which caused a respiratory illness outbreak that was first detected in Wuhan, China.<unk>  in COVID-19 infection is more common in patients with severe infection and it has been reported that<unk>  upon admission for COVID-19 infection is associated with poor outcome and mortality.<unk>  is defined by platelet count <150 x 
10
9
{\displaystyle 10^{9}}
/L on complete blood count (CBC). The pathogenesis of<unk>  in COVID-19 infection is due to several factors such as: infection of bone marrow, cytokine storm caused by the COVID-19 infection, increase in autoantibodies and immune complexes, lung injury which causes megakaryocyte fragmentation, and decrease in platelets which may be due to the activation of platelets that result in platelet aggregation.
COVID-19-associated thrombocytopenia
COVID-19-associated coagulopathy
COVID-19-associated anemia
COVID-19-associated hemodialysis
COVID-19-associated stroke
COVID-19-associated encephalitis
COVID-19-associated meningitis
COVID-19-associated neutrophilia