Transcript for The Dangerous 'Kylie Jenner Challenge' Exploding Online
We're going to move on to the heat index. Teens trying to copy kylie Jenner's pout. Paula Faris has the details. Reporter: This morning, kylie Jenner responding to dangerous new trend sweeping the internet, inspired by her famously plump pout. The kylie Jenner challenge has gone viral. Prompting many teens to try to get the full lips Jenner is known for on their own. What did I do? Posting photos and videos online of the painful process of sticking their lips in small glass containers and sucking all the air if to get this swollen look. Kylie Jenner lips challenge. Reporter: This is not the first time the 17-year-old has had to answer for her potent pout. In the past, speculation that she might have had lip injections. Something the youngest of the Kardashian clan denies. Claiming her lip transformation is thanks to lip liner. And now, in response to the DIY plumping trend, Jenner is speaking out again, writing on Twitter, I'm not here to try to encourage people/young girls to look like me or to think this is the way they should look. Telling her fans to be yourself and not be afraid to experiment with your look. Some of the images looking painful. Many even using the #kyliejennerchallengegonewrong, to warn others. This stunt can be a risky one. Doctors warn it can cause a number of issues. There it's temporary at best. At worst, you create cig Tant bruising. You break the blood vessels. You can have tissue damage and scarring. It's a terrible idea. Reporter: Now the shot glass can always break, sending shards of glass into your mouth and lips. There's a risk for permanent disfigurement. This needs a hashtag, don't do this. Right. Your lips are beautiful. Thank you. Okay, you two. Thank you, Paula.
This transcript has been automatically generated and may not be 100% accurate.