IOI made a guest appearance on the May 19 episode of KBS 2TV's 'Vitamin,' on which they talked in great--and somewhat embarrassing--detail about their health problems. 

On this episode, members So Hye, Na Young, Chung Ha, and Yoo Jung took the time to learn more about their health, something that needs constant attention and care. So Hye confessed, "I tend to fart often. I try to fart in secret but it smells so I can't even do it secretly. All the other members avoid me." Newsflash, everyone. Girls fart too, and yes, that includes K-Pop girl group members. 

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Yoo Jung talked about what could be a more serious condition, revelaing, "I bleed a lot when I urinate. It happens often. The water even turns red when I use the toilet. It hurts." A medical expert who was also a guest on the show diagnosed Yoo Jung's condition as an anal fissure, saying, "The lining of your anus has torn." Ouch....I think everyone here would agree that it's time for Yoo Jung to go seek professional medical help. 

When the members learned that an erratic, irregular lifestlye could lead to colon cancer, they couldn't help but grow concerned. Na Young said, "We go to sleep around four or five in the morning every day," drawing empathy from the MC panel. 

Get some well-needed rest, girls. You really sound like you need it!