Hemolysis is the process in which red blood cells break down, releasing their contents into the bloodstream. This can occur naturally as part of the body's recycling of old or damaged cells, but it can also happen due to various medical conditions, infections, or reactions to certain medications. When hemolysis occurs, it can lead to a decrease in the number of red blood cells, resulting in anemia. Symptoms of hemolysis may include fatigue, pale skin, and dark urine. Medical professionals can diagnose hemolysis through blood tests and may recommend treatments depending on the underlying cause.