Social media has a history of creating weird challenges. Some can be for good causes like The Ice Bucket Challenge helping bring awareness toward ALS research, and others can be stupid, vain, and lead to serious injury. In the Kylie Jenner Lip challenge, teenagers took shot glasses or bottles and sucked inward to create a vacuum. This helped puff out their lips to look like Kylie Jenner. Harmless fun, right? Well, apparently creating such a tight vacuum creates trauma to the lips, breaking blood vessels and causing lacerations and bloody lips. It can also leave long lasting scarring and changes in pigmentation. The trend has died down but in case you were thinking of picking up a shot glass and taking on the challenge, I’d carefully reconsider.