Anomalous red blood cells, as the name implies, are called abnormally shaped red blood cells. Normal red blood cells are biconcave disc-shaped, with thick sides and thin middle, which is the normal red blood cell morphology. In addition to the normal red blood cell morphology, the remaining seen is the abnormal red blood cell morphology. If the common small cell is called small cell hypochromic, there are also large cells, even larger called giant red blood cells, and oval red blood cells, and even spherical red blood cells, round like a sphere, the above are pathological red blood cells, and teardrop-like red blood cells, are abnormal red blood cells, the morphology of red blood cells show a variety of changes, abnormal red blood cells in addition to abnormal size, abnormal morphology, and structural In addition to abnormal size and morphology, there are also structural abnormalities on the red blood cell membrane, called anomalous red blood cells.