I have a Masterâ€™s in Lactation Science, so I know what I am talking about when it comes to all things breast:
1) Breastfeeding does not make breasts sag. Pregnancy and genetics cause the lost of elastic tissue, which causes sagging, NOT breastfeeding. If you didnâ€™t nurse your children [i.e. if you just fed them formula] you would be just as saggy. Also, women with larger breasts to start out with sag more. Itâ€™s simple physics. I have worked with women who have NEVER been pregnant and induced lactation, for adopted babies, and we see NO sagging in them, especially if they donâ€™t lose a lot of weight. They were never pregnant, so the fibrin which causes the breast to be “perky” was never lost, as it is in pregnancy. Lactation has no effect on the fibrin in the breast, or the eventual glandular structure size. In some women the glands grow slightly, and stay that way (usually in younger women and those with very small breasts), but we are talking about milligrams of weight, not enough to cause a breast to “sag.” (In fact the breasts are not considered completely developed until AFTER a full course of breastfeeding.) Breastfeeding is what the breasts were MEANT to do. It does not cause damage, size change (permanent), or sagging. However, pregnancy, genetics and improper weaning techniques [i.e. cold turkey instead of gradual] can cause these three.
2) If a woman lies down, and her breasts stay at “attention” (meaning they are still pointing up, firm, and look as though she is standing), chances are they are implants. REAL breasts obey gravity and fall to the side, as the woman lies down. Not many real women have cleavage while lying on their backs. Lying down cleavage is a good sign of “something” in the breast.
3) The hard, nearly untouchable implanted breast one poster touched (I am guessing a lot more than ONE poster has run into one of these) is not a “cheap” one. This is the result of “encapsulation.” The body doesnâ€™t like the invasion of the implant, and makes a scar tissue “capsule” around the breast. The breast then feels like a stone under skin. No telling who will encapsulate, but it is VERY common; most women who get implants will encapsulate eventually. The implant does not have to “rupture” at all, the immune system causes the encapsulation. It can and does occur in otherwise completely intact implants. And, it can hurt, a LOT. No cure for it. Some get relief when the implants are removed (especially if the surgeon removes the scar tissue also) but sometimes it stays.