Platelet specific volume of 0.31% is not serious. 1. Platelet count refers to the percentage of platelets per unit volume of blood, and the reference value for normal people is generally 0.11~0.28%, while 0.31% is only mildly high, which is commonly seen in traumatic bleeding or infections, etc., and can be treated with targeted treatments such as levofloxacin to fight against infections, and can be rechecked regularly in the hospital. 2. In addition, high platelet count can also be seen in primary thrombocythemia, true erythrocytosis and other hematologic diseases, which need to be differentiated and diagnosed under the guidance of physicians. Platelet specific volume needs to be combined with other platelet indicators to make a comprehensive judgment, and one abnormality alone does not have obvious clinical significance. It is recommended to consult a doctor for diagnosis and treatment under the guidance of a physician.