Interesting about
your sister. MY UC started around the time menopause started for me and I long thought there was a connection but have never seen studies stating that and it would not explain the men and children who get UC.
I wonder if your sister took antibiotics pre- or post-surgery because many people here have found antibiotics a start to their remission. And many, perhaps more, feel taking antibiotics
started their UC. Something I might agree with too.
Too many variables for you to look at one point of information (your sister) as a cure. And as you say you don't have a uterus anyway
I kept mine but got remission with diet modification.