Plastic surgeons are a bit worried that Kylie Jennermay ruin her features for good if the cosmetic work continues.

This news comes after the 18-year-old star openly thanked her doctor in August for giving her the perfect lips and admitted to getting lip fillers after months of lying about the size of her lips.

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"Kylie Jenner unfortunately appears to have had way too many fillers injected into her cheeks and lips and they appear completely unnatural, as they are out of proportion to the rest of her face," celebrity plastic surgeon, Dr. Tony Youn, tells Radar Online.

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"I suspect that she's had several syringes of filler injected into her lips, maybe even as many as 10 syringes," he adds. "Hopefully the appearance that we are seeing is temporary swelling...If not, then I STRONGLY recommend that she stop treatments before it is too late."

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Dr. Youn, who has not worked with the teen, continues, "This could turn into a major problem for her and she will end up ruining her face!"

Another surgeon, Dr. Susan Evans, believes that the reality star has "been injected with the longer lasting hyaluronic acid that increases volume...Her lips are so big now that it has created a fold from her nose to the corners of her lips."

Dr. Evans, who has also not worked with Kylie, says the procedures have left her looking "over-done and significantly older. It's a good thing that American-approved fillers don't last forever."