What is the lifespan of red blood cells?

The lifespan of red blood cells (RBCs) is typically around 100 to 120 days. This duration is important for maintaining healthy circulation and ensuring that oxygen can be effectively transported throughout the body. Red blood cells are produced in the bone marrow and undergo a process of maturation before entering the bloodstream. After their lifecycle is complete, they are usually removed from circulation by the spleen and liver.

This lifespan is significant to understand as it can impact various medical procedures and conditions. For example, conditions that lead to increased destruction of red blood cells (hemolysis) can result in anemia, where the body does not have enough healthy RBCs to function efficiently. Recognizing the standard lifespan helps healthcare professionals assess and manage such conditions effectively.