Swollen Flanks 7 Weeks Post Lipo?

It takes at least 6 months for swelling to completely resolve after a tummy tuck, and even longer if it is combined with liposuction. Sometimes, it can take up to a year for all the swelling to resolve, so you still have a way to go.  The swelling (which is basically fluid) tends to settle along the flanks and "muffin top" area, which explains your situation.

Continue with your good eating habits and walking, massage these areas, and you may want to try a light compression garment (Spanx) especially after and/or during exercising.  I hope that helps and wish you all the best!

It is hard to know if you have dog ears or normal postoperative swelling.  The best way to know is to do a proper physical examination.  You should expect the healing to continue for at least 6-9 month before deciding to undertake any further revisions. Visit with your plastic surgeon and relay your concerns.

Thank you for the question.
As always, it is best to be seen in person ( by your plastic surgeon) for precise diagnosis and treatment.

Generally speaking, abdominal wall "swelling" after tummy tuck may be related to:
1. Swelling in the soft tissues.  This may take several months to resolve and may worsen with increased activity  or at the end of the day.   Patience  is required to allow for resolution of the swelling. The swelling occurs because of the interruption of venous and lymphatic channels that occurs during the tummy tuck operation.
2. Fluid accumulation in the space between the skin and the abdominal wall muscle.  this may consist of blood ( hematoma)  or serum (seroma).  This fluid accumulation can generally be diagnosed by physical examination ( occasionally ultrasound  may be helpful).  Treatment consists of aspiration;  several episodes of aspiration may be necessary. 
3. Separation of the abdominal wall muscle repair may lead to a swelling/bulge appearance. This may be diagnosed on physical examination  with your surgeon examining you in different bodily positions. One of the steps of a tummy tuck procedure involves reapproximation (plication)  of the rectus muscles.  These muscles have spread apart during pregnancy and/or weight gain. Bringing them together again in the midline helps to “tighten” the abdominal wall as well as to narrow the waistline.
4. Residual adipose tissue may be confused for swelling. Again this is most easily diagnosed by physical examination. Additional liposuction surgery maybe necessary to improve the results of surgery.
Generally, it takes many months for swelling to resolve after tummy tuck surgery and it may take up to one year  (or greater)  a complete skin redraping  to occur.
I hope this helps.