The Full House star, 66, was diagnosed with tongue cancer in 2025 just seven months after beating Stage 3 non-Hodgkin Lymphoma following a diagnosis in October 2024 but he's now confirmed his treatment has worked.
During an appearance on Good Morning America, he explained: "It's been a roller coaster ride for sure ... I'm in remission with both cancers and what a journey this has been."
However, Coulier is determined not to feel complacent about his health, adding: "Even though I'm in remission, I feel like cancer is always in the rear-view mirror ... so early detection really means everything."
Coulier revealed the second cancer was discovered when he went for a check-up relating to his Lymphoma battle and he subsequently underwent robotic surgery to remove part of his tongue for a biopsy and it confirmed his diagnosis with a separate cancer.
He explained: "I was going in for a check-up for the lymphoma and got a PET scan and it revealed that something was in my throat and they said: 'Uh, let's take a look at this' ...
"And then it was revealed that I have carcinoma, and totally unrelated. Had I not gone in for that PET scan and gotten early detection … it saved my life."
Coulier underwent a course of radiotherapy and he was determined to "laugh" his way through the gruelling treatment plan.
He said: "It can steal parts of your life away from you psychologically, emotionally, and certainly physically. And I wasn't going to allow cancer to do that. I was going to laugh my way through it and keep the people that I love close to me."
Coulier went on to reveal he was supported by his former John Stamos, who went to visited him and attempted to keep his spirits up.
The actor said: "He's my brother. He wore a bald cap and when he came around the corner dressed like that, I dropped to the floor laughing.
"And he got COVID while he was staying with us. So we were like two fifth graders sitting in the hallway talking to each other with walkie-talkies."
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