The spleen sits under your rib cage in the upper left part of your abdomen toward your back. It is an organ parenting magazine pregnancy planner is part of the lymph system and works as a drainage network that defends your body against infection. White blood cells produced in the spleen engulf bacteria, dead tissue, and foreign matter, removing them from the blood as blood passes through it. A spleen is normally about the size of your fist.
A doctor usually can’t feel it during an exam. But diseases can cause it to swell and become many times its normal size. Because the spleen is involved in many functions, many conditions may affect it. An enlarged spleen is not always a sign of a problem. When a spleen becomes enlarged, though, it often means it has been doing its job but has become overactive.
For example, sometimes the spleen is overactive in removing and destroying blood cells. People usually find out about it during a physical exam. Being unable to eat a large meal. If you have pain that is severe or gets worse when taking a deep breath, see your doctor right away. If you have an enlarged spleen, you may develop other signs or symptoms, too. These are related to the underlying disease.