Spleen is a small organ located on the left side of your abdomen under the rib cage. This organ is part of your immune system and helps to fight off infections while also filtering damaged and old cells out of your bloodstream. If your spleen needs to be removed, you’ll undergo a surgical procedure called a splenectomy.

Your spleen is a small organ located on the left side of your abdomen under the rib cage. This organ is part of your immune system and helps to fight off infections while also filtering damaged and old cells out of your bloodstream. If your spleen needs to be removed, you’ll undergo a surgical procedure called a splenectomy.