Erythrocytes have more abnormal structures, which may include alkaline spot-colored erythrocytes, chromatin vesicles, kappochromes, and so on. 1. Basic spot-colored red blood cells: When selecting Riesling stain, there are basophilic gray-blue-like particles in the red blood cells, which belong to the red blood cells that have not yet fully matured. This type of red blood cell is less likely to appear in daily blood tests. 2. Chromatin vesicles: Chromatin vesicles are located in the cytoplasm of mature or young erythrocytes and usually appear round. Chromatin vesicles are usually 1-2 μm in size, purplish-red in color, and may be one to several in number. 3. Kappochromatous rings: Kappochromatous rings are purplish-red axial ring structures in the cytoplasm of erythrocytes, which are either ring-shaped or figure-of-eight shaped. The origin and nature of the kappo ring is not clear, it may be the remnants of the nuclear membrane, or the remnants of the spindle, which can be seen in leukemia, hemolytic anemia, megaloblastic anemia and so on. If there is any doubt about the abnormal structure of red blood cells, it is recommended to consult a medical professional. Under the guidance of the physician to clarify the diagnosis.