Erythrocyte distribution width of 18.2% is not within the normal range and is higher than normal. Erythrocyte distribution width is a parameter that refers to the consistency of red blood cell volume in peripheral blood, representing the uniformity of red blood cell volume size, with a normal reference range of 11.0% to 16.0%. Therefore, an erythrocyte distribution width of 18.2% is high. A lower Erythrocyte Distribution Width indicates that the red blood cells are more uniform than normal and is generally not indicative of disease or abnormality. If the erythrocyte distribution width is high, it suggests that the size of red blood cells is not uniform and varies greatly, which is common in iron deficiency anemia, thalassemia, megaloblastic anemia, etc., and is accompanied by abnormal hemoglobin, average red blood cell volume and other indicators. Therefore, it is recommended that the patient should consult a doctor in time, and the doctor should take into account the patient’s symptoms, blood counts and other tests to determine the cause of the disease, and actively treat the disease.