I am 4 years out from my lap band surgery. A huge purple bruise showed up on my stomach below my port.

Yes, the more weight you lose with the lap band the more you can feel the port.  Some times the port may feel as if is just floating around.  This is expected after substantial weight loss.  This is why the company made a smaller port called the pass port.  Consult with a bariatric surgeon abo...

The two most common symptoms of erosion are either infection at the Lap Band port site, or the feeling that the Lap Band is no longer effective. With erosion the band is not inside the stomach rather than on the outside so it is effectively no longer working. Vomitting and pain are not normal...

If you are only getting 2ml after several fills this means there is most likely a leak in the system.  The fact that the fluid looks yellow also suggests that the band, port or catheter has been compromised.  In my experience the most common site of leakage is usually from the port.  Consult wi...

I agree with the other comment below with regard to seeking a doctors attention, ideally the surgeon who put in your lap band.  One possible cause of an infection in the port are beyond the immediate postoperative period could be an erosion of the band into your stomach.  That would...

I normally do not bring you back to 6.5ml the first fill.  It will take two to three fills max to bring you back to 6.5ml with out any issues.  If 2.5ml is placed into the band in one visit, the band will most likely be too tight.  

With what you are describing, it is possible that there is a problem with your Lap Band that should be excluded. It can be a leak, which can be checked by withdrawing the full volume of fluid in the band as the first step of an adjustment.  It should approximately match the recorded total...