Tarek El Moussa's cancer is in remission, and the HGTV Flip or Flop star may owe that good news to the alert eyes of a nurse who was watching the show.

The 34-year-old, who co-hosts the home buying and renovation show with his wife, Christina, revealed to The Insider that his thyroid cancer was discovered by a fan who wrote in after noticing a lump on Tarek's neck.

"We actually ended up spending the day with her," Tarek said, revealing he met the nurse, Ryan Read, on an episode of The Doctors. "It was just such an amazing experience to meet this person, because she stepped up and did what others probably wouldn't have done."

"I probably would've never known that I had cancer," he continued. "And by the time that I would've found out, it probably would've been in a much further stage."

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Tarek -- who was diagnosed in 2013 -- admitted that at the age of 31, the cancer diagnosis was particularly tough to take.

"It really hit me hard," he admitted. "It hit my family hard, and it was just a really scary thing."

Thankfully for the couple and their two children, Tarek's cancer is currently in remission and they remain cautiously optimistic for what may come.

"I feel fantastic. I'm in shape, I'm taking all my medicines, and I'm currently in remission," he said. "Every day that goes by, the odds of the cancer [recurring] decreases, so we're really excited for that."

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Meanwhile, country singer Joey Feek is in hospice care after ending her cancer treatments in late October. Watch her remain brave in her last days in the video below.