👉 Erythrinus is a term used in the field of medicine to describe an abnormal increase in blood cells, typically seen in patients with sickle cell disease. Sickle cell disease is characterized by the presence of two sickle-shaped red blood cells (erythrocytes) that are unable to fuse together properly during maturation and development. This causes the red blood cells to become smaller and more tightly packed, leading to anemia and other symptoms. The term "erythrinus"