Generally speaking, the causes of high platelet counts in newborns include the following situations: 1, newborns suffer from dehydration. If the newborn has fever, diarrhea, etc. will lead to dehydration, resulting in blood concentration, hemoglobin count is high. 2, due to the newborn suffering from infection, if the newborn infected with bacteria, viruses and other pathogens, invasion of the human body, resulting in newborn coagulation dysfunction, platelet count is high. High platelet count will lead to thrombosis and hypercoagulable state of newborns. To deal with thrombocytopenia in newborns, you can apply medicines that activate blood circulation and remove blood stasis to newborns, such as Danshen injection.