I recently had an ultrasound that revealed an 8 cm fluid-filled cyst with septations.  I had an ultrasound 3 months ago where they found it incidentally and at that time they said it was 5 cm.  It does cause discomfort.  Also I have noticed that i cant empty my bladder fully and have some urine leakage.  Also, I do have a small cysts describe the same on my kidney.  We have repeated ultrasounds on the kidney 3 different times with no significant changes.  They are sending me for a c-125 blood test to rule out cancer.  My question I guess is would these cysts cause the urinating problems and would you suggest having the cysts removed?
Hi, Thanks for writing in. Cysts in kidney as described by you almost never cause any problems relating to passing urine. The kidneys are located high up in the abdomen, one on each side and under no circumstance will cause any problem related to micturition. Though, large complex cysts can cause obstruction to the flow of urine from the kidney to the bladder and this should be evaluated. After reading your query I think you require a CT scan abdomen to see and evaluate the cysts completely. Ca 125 is an indication to know if there is a possibility of any elevation of biochemical markers and the risk of a malignant cyst. If the cysts appear benign as per radiological classification on CT scan then best is to leave it alone. No intervention is required unless you have any significant complications.