What causes swelling of the lower abdomen?
Patient: I am 47 yr old type II diabetic.  I had a heart attack at 43 at which time i had a stent put in.  I have had lower back pain for the last 2 days and for the last hour my lower left abdomen is swelling...at first i thought appendix but if i am not mistaken that is on the right....swelling is painful ...bout 7 atm Doctor: HI Thanks for posting your query .      You didn't mentioned whether you are male or female as diagnosis can change with sex .     Swelling on one side of abdomen is always a matter of concern . Left side swelling could be due to some mass or cyst in the left abdominal quadrant . That too an associated lower back pain points towards problem in your left kidney .    Also a possibility of pus collection is there .    Is your bowel movements normal ?  If not passing bowels partial intestinal obstruction is also a possibility .    If you are a female then Ovarian Cyst , Ovarian mass or Pelvic Inflammatory disease . Ok sorry if I am being too technical .   Just do these things :   1. Get Ultrasound Abdomen Pelvis Scan                                      2. Get Urine Routine test Revert back with these reports for further discussion . Any clarifications feel free to ask . Regards.