Black dot along incision line, 4 months post op Breast Augmentation? (photo)

Thank you for the photos, although I cannot see much. If it a spitting stich, the surgeon will take it out, and it should be OK. If it a small area of separation, this too should heal well.  Please let your board certified plastic surgeon know of your concerns. Different plastic surgeons have different treatment protocols. They will guide you though the process.

Thank you for your question. Without the benefit of an examination it is hard to say. It could be a suture that is working its way out. I would set up a consult with your surgeon and see what their thoughts are. Good luck.

Your photo and story suggest that a suture is trying to "spit" or erupt through the scar.  It is not rare for this to happen.  It can easily be taken care of in the office.  Best to give your doctor a call for follow up.