Possible to Have Breast Lift Through Armpit or Transaxillary Incision?

The goal of a breast lift is to elevate the nipple-areola so that it is centered on the breast mound. Since the muscles are not connected to the skin, tightening the muscles is not part of a breast lift. There is just no way to avoid removing some skin around the areola in order to do a lift. However, in some cases adding an implant provides a degree of lift without skin removal. This is particularly true if there has been some loss of breast volume after breastfeeding. The question is whether a scar in the armpit will be better than a scar along the edge of the areola, where it is often better in people with darker skin because of the darker pigment of the areola.

The question is whether a woman with sagging breasts can get an adequate lift by operating through the armpit and lifting the muscles.  The short answer is not likely.  One can lift the breast slightly by placing implants but if the nipples are pointing down implants alone aren't likely to help.  The situation is one of inadequate breast tissue and/or too much skin.
The first thing to decide is how big you want to be.  If you want to be larger then you'll need some sort of implant.  If you are OK with your size then perhaps one of the many different surgical lifts may be sufficient.  In order to remove excess breast skin, incisions will have to be places on the breast itself.  There really is no way to lift the breast by lifting the muscle.