Is this dent on my left underboob going to go away by its own or do I need a medical procedure? (photos)

From the photos you provided, it appears that you have a double-bubble deformity which is simply a persistent representation of the native breast fold which hasn't gone away.  In some cases where the fold is lowered, this can happen.  I politely disagree with the other Plastic Surgeon who suggests that this is more common with HP/XHP implants.  I have used HP implants for years and rarely see this.  At this point, I would discuss your concerns with the Plastic Surgeon who actually performed your surgery and see what can be done.  You are still very early and so this might actually improve over time.  If you are not satisfied with your surgeon's approach, then a 2nd opinion might be warranted. I hope this helps and wish you the very best!Warmest regards,Gregory A Buford MD FACSBoard Certified Plastic Surgeon and Author

Hello,You have a double bubble, which means your implant has lifted your natural inframammary fold off of your chest wall. It's plump and squishy above the dent because that's your breast. Below the dent it's firm, which is the thin skin over your implant. This is a common problem with hp and xhp implants, which are typically chosen based on their diameter matching the breast width only, completely ignoring other, more important dimensions (like its projection). In general, hp and xhp implants have higher rates of complications and re-operations than flatter implants. Unfortunately, this does not get better with time, and frequently gets worse. If your surgeon isn't an ABPS certified/ASAPS member surgeon who specializes in revision breast surgery, you should visit a few who do. Best of luck.

Dear Daniela76636,I understand your concern and it is quite normal to be concerned about the outcome following a breast augmentation surgery. However, you are still in the very early stages of the healing process at 6 weeks  post op.Your will need to be patient at this moment and follow what your surgeon has instructed you to do post operatively.At the early stage of the healing process, the tissues around the implants are still swollen. Once the swelling subsides and the implants drop to their final position, you will be able to see the final result of your breast augmentation surgery.Daniel Barrett, MD
Certified, American Board of Plastic Surgery
Member, American Society of Plastic Surgery
Member, American Society of Aesthetic Plastic Surgery

It is hard to be sure in a photo, but I think you might have a double bubble on that side where your old inframammary fold has nor relaxed. If I had your pre op photo I would expect to see a bit higher tighter breast fold on that side. You need to see your surgeon to figure out what is going on. Hopefully this may relax out over a few more weeks. Good luck.