Corey Simms Slideshows

This week's episode of Teen Mom 2 focused largely on health issues endured by Leah Messer's daughter Ali. Fans were deeply moved by Leah's dedication to her daughter, and many offered words of support and encouragement on social media.

David Eason recently decided it would be a good idea to criticize Leah Messer's parenting. We're guessing he's regretting that move right about now.

Teen Mom cast members have a bad habit of blaming their bad behavior on MTV editing ... but do they have a point?

Ranking Teen Mom couples past and present is an arduous task, but one The Hollywood Gossip is more than up for.

Teen Mom and Teen Mom 2 focuses on the ladies, but we can't forget the men that made them into mothers -- or the ones that stepped in after.

Leah Messer's love life has enough turmoil to support its own reality show. Relive some of the most dramatic with our definitive timeline.

Leah Messer of MTV's Teen Mom 2 has been through the wringer of late, accused of every bad parenting move under the sun. All of which she has excuses for.

Teen Mom: OG is back for a new season Monday, January 4, 2016. Here's a look at some of the franchise's wildest moments to date!