Thank you for this very important question. Since breast augmentations are a want and not a need, no portion of a breast augmentation "needs" to be done.That being said, the Tail of Spence is that nasty bit of fat at the front of many women's armpit which is a remnant of the breast tissue that came in during puberty. This small piece of breast tissue at the anterior aspect of the armpit normally turns to fat within a few years (around age 15). This fat, not being part of the diet and exercise pool, cannot be gotten rid of by exercising or any dietary change. Since breast augmentation is an aesthetic (cosmetic) procedure, and in my experience most, if not all women who have this fatty tissue think it is unattractive and wish they could get rid of it. Since liposuction of this area can be done through the same incision that one does a transaxillary breast augmentation through, this area can be suctioned out quickly, and almost effortlessly. Sadly, I had a patient years ago who died from breast cancer originating in the Tail of Spence. Although few, if any breast cells, can be removed by liposuction, if the surgeon sucks away the fat surrounding these breast cells, it becomes quite easy to visualize and/or palpate any cancerous changes in the residual breast cells.If you were my patient, I would liposuction the Tail of Spence at the beginning of a breast augmentation for both aesthetic and health reasons, and I do not charge anything extra for this procedure since it is so quick and simple. Going back to your original question, is it necessary to get rid of the Tail of Spence in a breast augmentation, I think the breast augmentation is not necessary. (It's a want, not a need.) But honestly, removal of the Tail of Spence may be the most necessary part of this procedure. Secondly, you ask will it compliment my breast augmentation. From an aesthetic point of view, it's removal certainly makes a breast augmentation more attractive.