I'm 6 months post liposuction and I have fluid in my lower back. When will it go away? (Photo)

This looks more like loose skin and fibrosis, but I suggest seeing an expert for an evaluation.  Fluid after 6 months is rare.  Best, Dr. Emer.

Thank you for your question and photographs.  I can see your area of concern but would counsel you to first ensure that you are dealing with a seroma versus swelling or loose skin.  If your plastic surgeon can confirm the seroma through physical exam or ultrasound then treatment would involve drawing off this fluid and compression therapy to try and minimize the chance of recurrence.  If the fluid has been present for a long time your body may have walled it off behind an area of scar tissue that may need to be surgically removed for definite treatment.  Continue to voice your concern to your surgeon and if their answer is not what you anticipate, seek a second opinion.  Hope this helps.

How do you know it is fluid? Has your surgeon aspirated it? Did you do an ultrasound? If it IS fluid, at six months it likely has developed a lining (bursa) around it and is not likely at all to go away and would require surgery to attempt to correct.This may well also just represent excess skin and/or fat in which case either nothing or different surgery may be indicated.First issue is to DOCUMENT whether or not it is a fluid collection.