Can Flat Nipples That Were Once Inverted Be Corrected with Surgery?

"Flat nipples" can be corrected with several techniques. One option that is relatively easy in terms of recovery is the use of injectable fillers. Short and long acting fillerrs can be used to increase volume of the nipple and increase projection.  This works reasonably well in most people. Longer lasting solutions can be fat grafting, dermal grafting, or placement of silicone nipple implants. You should be seen by a board certified plastic surgeon in order to find out which is the best option in you.

Depending on the type of surgery you had done, it may be possible to release more of the tethering ducts and increase the protrusion of your nipples.  If the ducts have been fully released, you might just naturally have flatter nipples.  (Over time, even a second surgery to release ducts may result in gradual flattening of the nipples)  Grafts and fillers are sometimes used to increase projection (more often in nipple reconstruction following removal or significant deformity of the natural nipple).    Blood supply to your nipple needs to be considered, since you have already had one procedure.   Be sure to discuss this with a qualified plastic surgeon who examines you and discusses the risks/benefits of additional treatment.