My body hair growth also receded. I am 50. Was ' given ' a total hysterectomy 2 years ago. I do believe it is because of the change in ( or lack of ) hormones. NHRT helps but there is NOTHING better than the real thing.
I could answer this a lot better if i knew your age..women usually stop growing hair under arms and stop needing to shave legs somewher around 65 -70..its just a normal part of aging,,,I dont think this is related to your surgery.