Is This a Double Bubble? Is a double bubble painful? (photo)

Thank you for the question and pictures. It is very difficult, based on the photographs, to tell whether you are dealing with a breast implant displacement problem. To me, not knowing more of your history, it seems like the lower pole of the breast ( where you see redness)  seems to be irritated ( possibly by a bra?).

 “Double bubble” issues are not necessarily painful. Sometimes however breast implant displacement problems that cause the appearance of the double bubble may be painful; this discomfort  is often alleviated when the patient supports the area involved.

 Best, for accurate diagnosis, advice, and/or reassurance, to be seen by your plastic surgeon.

Best wishes. 

It looks as if your surgery was relatively recent.  In the area that is shown in the photo, the ridge may very well be your old crease under your breast which needed to be moved in order to accommodate your new implants.  Sometimes there is temporary swelling and bruising in this area that resolves over time.  If your surgery was some time ago, I would recommend an evaluation with your plastic surgeon to see if things can be improved.