Upper limits of normal spleen size = 11-13 cm.
Is your spleen palpable? (meaning, can you feel it below the bottom left rib - to know if you can feel it, press down firmly starting at the bottom edge of the lowest rib, and slide your fingers down, in the direction of your belly-button - keeping firm pressure this whole time .... if you can feel a spot where something kind of slips out from under your fingertips, that is your spleen ..... measure how many centimeters down from the rib it is ---- the spleen normally should not be palpable)
Symptoms can include abdominal or chest pain (especially when the bladder or bowels are full), bruising, anemia (which can make you very tired/fatigued)
Your spleen can become enlarged just when you have an infectious illness (because the spleen is part of the immune system), although usually the only illness that causes your spleen to get significantly enlarged is infectious mononucleosis (mono). Do you have any signs of mono? A lab test for EBV would show whether you have it.
The next most common cause of splenomegaly is liver disease. Do you have cirrhosis or any liver problems? Do you look jaundiced (yellow skin, yellow eyes)? Did you have liver function tests performed in your blood work?
I assume you have had a CBC as part of the blood work - you want to make sure that none of your counts are low (RBC-anemia; WBC-leukopenia; platelets-thrombocytopenia).
I agree with the other post in that the spleen is part of the immune system and can become enlarged with some infections. Also, did they check you for kidney stones with the ultrasound? Other symptoms of acute Mono would be sore throat, fever and swollen lymph nodes. If you don't have these symptoms it probably isn't mono. If you do then you can get the EBV test for mono. But with what you have said so far I don't think you have it. You do sound like you had a urinary tract infection and that the E.coli was resistant to the first antibiotic . It can have multiple resistance factors these days. It sounds like it got up into your kidneys. It sounds like the infection with E.coli may have caused the enlarged spleen. So after the antibiotics you are still having pain? It may be that the enlarged spleen is still causing discomfort. It takes time for it to go down once it is enlarge. Like lymph nodes they and the spleen can take a month to go down. But, you may want to go back into the doctor to get retested to make sure your urinary tract infection is gone and that there isn't anything else going on. Are you running a fever? If so that would indicate you still have an infection.
I don't have the symptoms of mono and I have had blood tests for the liver, among other blood tests that can indicate most causes of enlarged spleen.
I think you are right about the infection, and it's reassuring you think my spleen was just enlarged from the E-Coli infection. Maybe it is still there, I'm going back to doctors today to double check i still haven't got the infection.
Thanks to both of you for your comments!
It's tough to feel your own spleen when your not 100% on where to feel, but my mum had a feel and it was extremely painful where she touched- very tender around the ribs and below on the left side!!
You are welcome Let me know how it goes