Platelet volume distribution width of 11.2% is not in the normal range and is lower than the reference value of 15% to 17%. Lower platelet volume distribution width is not clinically significant, often suggesting a more consistent platelet morphology, not indicative of a disease state, no treatment is needed, and regular follow-up observation is generally recommended. Platelet distribution width, or PDW, is the coefficient of variation of platelet volume size in the blood, representing platelet volume homogeneity, the normal reference value is 15%-17%, the lower the PDW, the higher the platelet homogeneity, the higher the PDW, the greater the difference in platelet size. Therefore, platelet distribution width 11.2 is lower than normal. Platelet volume distribution width that is high represents platelet size variability and is commonly seen in acute myeloid leukemia, megaloblastic anemia, chronic granulocytic leukemia, splenectomy, and other diseases. Platelet volume distribution width of 11.2% is recommended to be combined with platelet count, mean platelet volume and other data to determine whether there is any abnormality, and regular follow-up review can be done.