The spleen is an organ that is located just below the left rib cage. An expanded spleen, also recognized as splenomegaly, can be caused by a variety of conditions, including infectious diseases, liver disease, and some cancers. Typically, an enlarged spleen does not cause health problems. It is frequently discovered during a regularly scheduled physical examination. A normal-sized spleen cannot be felt by your doctor in elderly people, but an expanded spleen can. our doctor will most likely order imaging and blood tests to assist determine the cause. The underlying disorder that is affecting an enlarged spleen is addressed in treatment. Surgical removal of an enlarged spleen is not usually the first line of treatment, but it is occasionally advised.