The 28-year-old actor, who plays Adam Burton on Emmerdale, made that confession during a Q&A from the jungle aired during Monday's episode of Extra Camp.
When asked how he dealt with spiders in his home, Adam admitted: "I don't give it time! I run away and go find the missus and she has to pick it up. The missus was pregnant at one point and I had to wake her up out of bed and she had to go downstairs and get the spider for me. Sorry, babe!"
So, does he think being in the jungle and tackling spiders in the Bushtucker Trials has helped his fear?
"Definitely not!" Adam laughed. "The spiders in here are no normal spiders. They're like giant spiders, jumping spiders! I've never seen spiders like that in my life but if I can face these ones then a house spider, maybe I won't be bothered."
Spiders aside, Adam said that being in the jungle was a brilliant experience he wouldn't change for the world.
"The best experience is meeting this lot," he said of his fellow campers. "I've got friends for life in here. Not even friends, family. It's just an amazing, life-changing experience and I'm loving every minute of it."
Meanwhile, Adam had to face his fear of spiders once again on Monday night when he was chosen for the latest Bushtucker Trial, the Food Factory. Check it out below!
I'm A Celebrity airs nightly on ITV.
Like this? Don't miss out! Make sure you're following Reveal across Twitter @RevealMag / Facebook @Revealmagazine / Instagram @revealmagofficial