ABC News February 5, 2014

Why Kylie Jenner Had to Go to the Hospital

Ethan Miller/Getty Images
Khloe Kardashian and Kylie Jenner speak onstage during the iHeartRadio Music Festival at the MGM Grand Garden Arena, Sept. 21, 2013 in Las Vegas, Nev.

Kylie Jenner had to go to the hospital Tuesday for, of all things, a trampoline accident.

She blames sister Khloe Kardashian, but the verdict is out on that.

"in the hospital thanks to @khloekardashian. (Look at her page for the reason why ??) my mom said "never thought I would take u to the doctor for a trampoline accident at this age) this means war Khloe. Ps. It was painful taking this photo," Jenner, 16, posted on Instagram yesterday.

Kardashian, 29, came back with her defense evidence, a picture collage showing what looks like proof Jenner injured herself.

Read: Khloe Kardashian 'Angry and Confused and Irritated at Life' Prior to Lamar Odom Split

"Kylie this is proof you did it to yourself! Sorry not sorry! Just kidding I am sorry my little bug a boo!! Let the war continue!!!!" Kardashian said.

War? This should be good.