Cindy Herrmann's Devastating Diagnosis in 'Chicago Fire' Takes a Turn (SPOILERS)

Spoiler alert: The following contains major spoilers for Chicago Fire Season 11.

The fictional firefighters on NBC’s long-lived procedural drama series Chicago Fire put their characters’ lives in danger every day. But this time, it isn't someone from Firehouse 51 whose life is at risk.

Lieutenant Christopher Herrmann (David Eigenberg) and his wife, Cindy (Robyn Coffin), have been to hell and back.

From facing foreclosure to close calls with death, the Chicago Fire couple has seen it all since the series first aired in 2012. Although they’ve been able to survive many fires over the years, fans have been concerned that the OG Chicago Fire duo’s luck may have finally run out.

After Cindy received a devastating cancer diagnosis, viewers were led to wonder if she’s leaving Chicago Fire. So, what’s the truth?

In Season 11, Episode 17, viewers learned the best news in the case of Cindy's lung cancer diagnosis. Cindy is officially cancer-free!

Yes, you read that correctly!

Upon Cindy's diagnosis, the Herrmann matriarch initially tried to get the cancer surgically removed.

"Unfortunately, we weren't able to get the margins clean," the doctor told Herrmann afterward. "She made it through the surgery well, but we weren't able to get all the cancer out."

As a result, Cindy went through chemotherapy and radiation. She often felt very sick, experienced hair loss, and struggled to remain confident in her treatments.

However, once the doctors shared the news that she was officially cancer-free, Cindy and Christopher immediately looked at each other and got emotional.

Cindy has been a staple throughout Chicago Fire, offering Herrmann support and stability through his challenges out on the force. But life has also thrown some challenges Cindy's way.

The couple first received some bad news in Season 11, Episode 11 of Chicago Fire — “A Guy I Used to Know." Herrmann noticed that something was amiss when he came home to his wife in bed with a persistent cough.

After administering a COVID-19 test, which came out negative, Herrmann insisted that his wife take a trip to the hospital. It was there that she received the devastating diagnosis. After she underwent a CT scan, doctors revealed that Cindy had lung cancer.

And the news hit her husband like a sack of bricks. "You gotta go check that again. That can't be right ... Cindy here has never smoked a cigarette in her life.”

“And I'm a firefighter. I go into smoke and chemicals all day. I'm the one that's supposed to get lung cancer. Not her,” Herrmann insisted in the episode.

In Episode 15, things took a turn for the worse, and Herrmann was left coping with Cindy's cancer. He told Ritter (Daniel Kyri) that his family was "doing fine," but after telling his and Cindy's kids on the phone that her dizziness and nausea were normal, he broke down and cried. Luckily, Ritter was there to comfort him. The episode became a lesson in opening up.

Herrmann went home to his children by the end of the episode and explained, "Your mom has cancer and that really, really sucks. And we don’t have to pretend it doesn’t. It’s OK to talk about it and cry about it … You can’t keep it bottled up. We have to let it out somehow.” Let's hear it for male vulnerability!

Despite past speculations that Cindy may be on her way out, her exit from the show seems unlikely given that she's now cancer-free.

As of this writing, showrunners haven’t given any indication that Cindy is going anywhere anytime soon. This news comes as a relief to fans, who aren’t quite ready to see her go.

If Cindy from Chicago Fire looks familiar, it’s probably because she is. Robyn's career in entertainment dates back to 2011. However, she's best known for her roles in The Life and Death of an Unhappily Married Man and Every 21 Seconds.

New episodes of Chicago Fire air Wednesdays at 9 p.m. EST on NBC.