The Olympic champion says she feels “liberated” after the procedure.
Caitlyn Jenner will speak about her decision to have gender reassignment surgery in her upcoming new book The Secrets Of My Life.
“I just want to have all the right parts. I am also tired of tucking the damn thing in all the time,” Caitlyn writes in the memoirs, according to an excerpt obtained by Radar Online.
“The surgery was a success, and I feel not only wonderful, but liberated.”
She added: “I am going to have an enthusiasm for life that I have not had in 39 years since the Olympics, almost two thirds of my life.
“You want to know, so now you know. Which is why this is the first time, and the last time, I will ever speak of it.”
Caitlyn Jenner worked on The Secrets Of My Life with Buzz Bissinger, who wrote her Call Me Caitlyn cover feature for Vanity Fair.
The book will be released on 25 April.