Breast reduction 15 years ago. Went from 38DDD to a 38C. Will I require a lift if I opt to have a breast augmentation? (photo)

Hi! I do not recommend doing a secondary lift as that can compromise blood supply due to scarring and also there runs the risk of  tissue necrosis. Doing a fat transfer to the breast will help re-inflate the breast and cause a natural lift to the breast. A silicone implant will not help lift the breast, the implant would be sitting in the upper pole of the breast and give more fullness there with your natural breast tissue lying over it, not causing any lift because the implant is under the muscle. I think the best option for you would be a fat transfer. Hope this helps!

Very interesting question and a more reoccurring story.  Patient has a breast reduction and then goes through the life's processes - pregnancy, weight gain, weight loss, gravity.  You have different breast shape and size then you started off with.
You need to see a board certified plastic surgeon with experience in these patients.  He will help you decide what your end goal is - size and shape - and then decide the best way to get there.  I depends on the quality of your skin and tissue.  Autoaugmentation, Implants, A lift with implants etc all are options.