👉 Cyanmethemoglobin is a pigment found in red blood cells and can be detected in blood tests. It's produced by the liver when it produces methemoglobin, which is then used to generate oxygen. In people with sickle cell anemia, this production of methemoglobin leads to a condition called hemolytic anemia where the red blood cells are too small or have abnormal shapes, making them difficult to transport and distribute oxygen throughout the body. Cytomegalovirus (