I was told last friday that my spleen is enlarged.  Since friday, it has become very painful.  It feel a lot of pressure on my left side under my ribs.  My Dr. (pulmonary) wants to see me in 3 weeks to re-evaluate.  They found the spleen after a ct scan was taken of my lungs.  Lungs are normal.
Hi and welcome to Chat Doctor. Thank you for your query. I am Chat Doctor, I understand your concerns and I will try to help you as much as I can. Enlarged spleen is called splenomegaly and there are various causes possibly leading to this. In first case these are infections such as mononucleosis Parasitic infections, such as toxoplasmosis or Bacterial infections. It means that any infection in your body may lead to spleen enlargement.  Second most common causes include autoimmune diseases such as thrombocytopenia. If this is ruled out by specific tests then some other causes may be considered and some are more or less serious such as Leukemia Lymphoma, or noninflammatory diseases such as acidosis, lupus, and rheumatoid arthritis. In every case, infectious causes are treated with antibiotics and other causes may require surgical removal of spleen. I hope I have answered you query. If you have any further questions you can contact us in every time. Kindly regards. Wish you a good health.