With all due respect to the wiki, Brassard at least told us that the muscle had had a hole cut through it but was not substantially rearranged, and that the main issue with the *muscle* was it trying to clench shut against "invasion." (The vaginal tissue itself might try to heal closed, though.) In fact, the nurses encouraged us to master the Kegels thing, so that we could gain urinary continence back as fast as possible. I don't think it does any harm; certainly didn't for me, at any rate.