Them Dwarven folk.

[The Sixth Wizard]

Originally Posted by Encaitare

Yes, I believe the appendices say that Dis was the only female dwarf who was in any of the Middle-earth tales. I believe the Dwarves were a declining race, since there were so few Dwarf-women and many Dwarf-men never married anyway. It goes along somewhat similar lines as the Elves -- as the dominion of Men grew the other races began to diminish.

I don't believe they were a declining race, but they didn't increase very rapidly. And dwarf women are probably just completely secretive. I think the Dwarves only declined because of the reagaining of Gondor.