Once upon a time it was held that horses sweated, men perspired, and women glowed. For the same reason I would be highly reluctant to describe a woman as having been spayed! :>) It's a word I associate with pets.
But there is no justification for the coinage of hysterectomized!! Why not a simple construction, such as "underwent a hysterectomy", "had her womb cut out" or more politely, perhaps, "underwent surgery for feminine complications"? It seems to me we don't really need a coinage for everything, and that some things are (and should be) actually dignified by circumlocutions.