I guess you could call my shar-pei a senior. She is almost 7, my husband got her for me when we first moved to Hawaii as a wedding gift. She is spayed, and our vet at one point told us it was very common for older spayed females to lose the ability to hold their urine while sleeping. Well, she's at that point. Has anyone done the hormone replacement therapy to help with the sphincter muscles? She won't wear a diaper, and I'd hate to have to relegate her over the linoleum only when she's been a all over the house dog her whole life. I just am tired of finding little puddles all over after she's taken a nap.