👉 Hematolytic is a medical term that refers to an abnormal increase in the amount of red blood cells in a person's body. This condition can occur due to a variety of factors, including genetic disorders or conditions like thalassemia, which affects the production and function of hemoglobin, an important protein found in red blood cells. Hematolytic diseases are often associated with increased bleeding and bleeding disorders, and they can be life-threatening if not properly managed.