Platelets 1000 x 10⁹/L are generally a more serious condition. The normal value of platelets is (100~300)×10⁹/L. Platelets 1000×10⁹/L means that the number of platelets in the blood is seriously increased, which is a more serious condition. 1. A high platelet count of 1000×10⁹/L will cause an increase in the viscosity of the blood, leading to the blockage of blood vessels and easily inducing thrombosis and embolic diseases, such as myocardial infarction, pulmonary embolism and cerebral thrombosis. 2. In addition, when there are more platelets aggregated in the blood vessels, it will also cause damage to the endothelial cells of the blood vessels, resulting in bleeding. 3. Thrombocytosis is common in primary thrombocythemia, true erythrocytosis and other disease factors, need to be timely specialized treatment, such as primary thrombocythemia can be hydroxyurea, aspirin and other targeted treatment. Therefore, when the platelet 1000 × 10⁹ / L, it is recommended to consult a doctor in a timely manner, improve the relevant examination, clear the cause of the disease under the guidance of the physician for targeted treatment.