During its original run, Fear Factor pushed the bar for reality TV—and probably broke some FCC regulations as well. For six seasons, it put willing contestants through sometimes awful, sometimes terrifying, always hilarious challenges that called upon the most common fears and dislikes, all with the promise of a cash prize for whoever was the last one standing. As simple a concept as it may seem, it made for some memorable television.

The series went off the air in 2006, but remained heavily broadcast through reruns on a variety of networks. High ratings throughout the next five years prompted some TV execs to rethink their decision to cancel the series, and now, in 2011, Fear Factor is back for its seventh season.

In honor of the season premiere, which is tonight at 8 p.m. on NBC, Complex decided to take a look back at the 10 most outrageous, grossest challenges that have appeared on the series. Consider this fair warning—it can get pretty gross, but hey, suck it up. After all, facing your fears is what the show's all about.

Written by Tanya Ghahremani (@tanyaghahremani)

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