I Am 21 Days Post-OP Tummy Tuck Scab Fell off and Now with Fresh Looking Wound. No Fluid or Foul Smell? (photo)

The photos do not suggest an infection. You may have a minor separation of the superficial portion of the wound. This could also represent some irritation from a buried, absorbable suture knot that is irritating the skin and causing  small opening. You can apply a topical antibiotic such as Neosporin. Typically, wounds like this are allowed to heal on their own. This may take a few weeks. If the redness or swelling worsen, you should see a surgeon. Most likely, this won't be necessary.

I am sorry to hear about the problem you are experiencing.  Superficial separation of the incision line is a known complication after tummy tuck surgery.   Close follow up with your plastic surgeon will be in your best interests; sometimes removal of a exposed suture and/or removal of any unhealthy tissue will expedite healing. Otherwise, wound care regimens will differ from one plastic surgeon to another.  Generally, this will involve application of some type of sterile dressing ( in my practice I use a non-stick dressing covered by a sterile dressing). You should have peace of mind that these types of wound healing problems generally go on to heal over the course of the next several weeks,  without long-term sequelae. Also important to concentrate on a healthy diet,  including good protein source. Occasionally, in the event of a wider scar, scar revision surgery may be helpful down the line.  Best wishes. 

This is a rather common occurrence at the "t" intersection of TT, breast lifts, etc. Typically these do not need surgery either immediately or later, as they go on to heal normally. Keep the area clean, use a moist dressing if possible (xeroform, adaptic, or other) covered by dry guaze. In the unlikely event of trouble, see you primary physician. All the best.