Unspayed female rabbits have a very high risk of uterine, ovarian and mammary cancers. Some reports state that more than 80% of unspayed, unbred female rabbits will develop uterine/ovarian cancer by the age of three years.
If the reproductive organ is not there, they will not get cancer there. Period. I never said that spaying/neutering would prevent cancer from occuring in *other* parts of the body.