Generally it is a good idea to perform regular scar massage during the first several months after a tummy tuck. The good thing about being in your sixties is that your dermis is probably a bit thinner than it was when you were younger, and that means usually your scars won't be as thick; the bad thing about it is that your skin may be a bit more fragile and prone to injury from overly aggressive massage. Also, the biggest gains to be had from massage, in my experience, are in the first 1 - 6 months, and beyond that, the collagen in the scar tissue has begun to "set," and the scar is beginning to mature. My point is that you should continue to massage if you are seeing thickness of your scar, but only with a good lubricating scar ointment or cream - you should always use lubricant to avoid friction on the skin and injury to the delicate healing tissues, and only with firm pressure, but not so firm you are injuring your tissues. This is something you will have to judge for yourself in conjunction with your surgeon. If you are noticing redness, bruising, or discoloration of your scar after massaging, you are doing it too frequently and too aggressively. Usually twice a day with a firm, but gentle pressure is all that is necessary. If you have persistent thickness, or any kind of pain, itching, or other unpleasant sensations in your scar, be sure to address these with your surgeon too. Sometimes scars that are hypertrophic, or too large, will benefit from injection of medications too.