Will an infection affect decrease red blood cell count?

In most cases, an infection will cause an increase in red blood cell count, not a decrease. When the body fights an infection, it produces more white blood cells and platelets to help fight off the infection. This can cause the red blood cell count to increase. However, in some cases, an infection can cause a decrease in red blood cell count. This can happen if the infection is severe and damages the bone marrow, where red blood cells are produced. Additionally, some infections, such as malaria and sickle cell anemia, can directly destroy red blood cells. If you are experiencing a decrease in red blood cell count, it is important to see a doctor to determine the cause and receive appropriate treatment.