Can Inverted Nipple After Lumpectomy Be Repaired?

An inverted nipple usually can be repaired. After  lumpectomy, you probably lost some tissue under the areola and that is what caused the indentation.

There are several reasons for nipple inversion after lumpectomy. If the lumpectomy was close to the nipple, some of the tissue support may have been removed. Did you have post-op radiation therapy? This can also contribute to change in the smooth muscles which are responsible for eversion of the nipple.
Ask your surgical oncologist's opinion of the cause of nipple inversion, prior to asking for cures. Plastic surgeons are frequently requested to correct nipple inversion and various procedures have been developed, which are fairly simple in women without a history of breast cancer. These include using injectables, such as Restylane, surgical division of the ducts, which are responsible for the inversion, creation of a "pursestring" suture to elevate the ductile tissue. Without the benefit of a photo, I cannot give you an accurate diagnosis or plan, however your surgical oncologist can. Good luck.