AceShowbiz -

Kim Kardashian denies rumors that suggest she's undergone plastic surgery to get her enviable curves back after giving birth earlier this year. The "Keeping Up with the Kardashians" star took to Twitter to shoot down the false accusation and let everyone know how hard she's worked to lose her weight.

"I am very frustrated today seeing reports that I got surgery to lose my baby weight! This is FALSE," she tweeted on Wednesday, November 20. "I worked so hard to train myself to eat right & healthy, I worked out so hard & this was such a challenge for me but I did it!!!"

"I'm so proud of my accomplishment & NO ONE will take this away from me with fake reports. Say what u want about me but I work hard & am the most disciplined person u will ever meet!" the 33-year-old TV personality said.

Kim has lost significant weight since giving birth to her first daughter with fiance Kanye West, North West, last June. When appearing on "The Tonight Show With Jay Leno" last month, she admitted to having lost a total of 50 pounds and said that Atkins diet and consistent workouts were the secret behind her slimmer figure.

The plastic surgery reports recently emerged after Life & Style claimed that Kim had been secretly seeing Dr. Simon Ourian, a Beverly Hills cosmetic plastic surgeon, at the discreet Epione clinic. An insider told the magazine that Kim spent hundreds of dollars to get "fillers, stretch-mark treatments and a fat-reducing ultrasound procedure on her stomach."