Low mean platelet width needs to be judged in combination with other indicators and cannot be generalized. Generally speaking, if the platelet distribution width is just a little bit low, and the patient does not have any obvious discomfort or abnormal indexes, it is not of great clinical significance. Generally, no special treatment is needed, and patients should go to the hospital for regular checkups and dynamic observation of the changes in platelet values. If the width of platelet distribution is very low, and at the same time there is also a low platelet count, it means that the patient may suffer from blood diseases, such as aplastic anemia and other myelosuppressive diseases. Further examination is usually needed to clarify the diagnosis and then treat the symptoms. If the average width of platelets is more obvious or other indicators are abnormal, it is recommended to go to the hospital for further examination in time to avoid delaying the condition.