My reasoning has to do with the fact that the spleen functions as part of your body s immune system. It is a component of the lymphatic system and helps to keep your blood supply healthy. As you are no doubt aware by now, people who have had their spleen removed are at increased risk of bacterial infection. The risk of infection is much higher among children than adults. The risk also appears to decline with time.
Some doctors believe that other organs eventually take over the role of spleen completely.
The pneumococcus bacteria, which can cause pneumonia and other illnesses, is of particular concern. Pneumonia vaccines are recommended for people who have had a splenectomy. Flu shots are probably a good idea, too. Although the flu is a viral infection, it increases the risk of catching a secondary bacterial infection. Now, here is where the common sense comes back in the picture.