Saline filled breast implants have been used for augmentation mammoplasty for cosmetic purposes as well as for breast reconstruction following mastectomy for cancer. Despite the immense benefit they provide, their usage is associated with some complications. Most of these complication are related to the surgery and be reduced by good surgical management. The major late complications associated with their use are adverse capsular contracture, buckling of implant/rippling of the skin, and deflation. We experienced gradual implant deflation after augmentation mammoplasty using saline filled implant. The cause was diaphragm valve opening by contracted scar captured between implant valve and seat.