She's one of the biggest stars in Hollywood, but Jennifer Aniston has revealed her and fiancé Justin Theroux avoid going out to red carpet and celebrity events because she's fed up of cyber bullies.

Aniston, 45, told the Express, "You do the best you can but it feels like it’s getting worse and very nasty because of bullying on the internet."

"Even movie critics don’t just comment on the film, they tear people apart on a human level.

"I don’t know why that is happening but it is…we just stay home so there really isn’t anything to report," she added.

The former Friends star made her last red carpet appearance at the premiere of TV show The Leftovers in June this year (pictured below), in which Theroux is the lead star.

In a recent interview with Bobbi Brown, founder of the Bobbi Brown make-up brand and editor-in-chief of Yahoo! Beauty, the star opened up about what is it like to have the paparazzi at her door and how it affects her self-esteem.

"The truth is you just go, "If they get a picture, that picture comes and goes, so who cares?" Then you have 30 mean people who sit at their computers and spend their entire day picking apart and insulting celebrities about how ugly they are just so they can feel better — I guess — about themselves. I don’t understand it."

The actress also spoke candidly about her dislike for cosmetic surgery, saying she is a fan of the natural ageing process.

"There is also this pressure in Hollywood to be ageless. I think what I have been witness to, is seeing women trying to stay ageless with what they are doing to themselves. I am grateful to learn from their mistakes, because I am not injecting s**t into my face."

"No honestly, I see them and my heart breaks. I think, "Oh god if you only know how much older you look." They are trying to stop the clock and all you can see is an insecure person who won’t let themselves just age. I also have a fiancé; who will put a gun to my head if I touch my face in any way."

"I also understand that age is kind of awesome," continued the star. "I am fortunate enough to know women like Gloria Steinem, who I think is one of the most stunning women on the planet, and doesn’t touch her face. Diane Keaton, Annette Bening, all of these fabulous fearless women who are flawless, they embrace it! You know, to each their own; I don’t judge it if you do it, but sometimes I wish I could beg the people I know, who I am very near and dear to, to not touch their face."

(Images: Rex Features)