Dave Coulier’s Cancer Journey

Dave Coulier, star of the 1987 American sitcom Full House, revealed that he was diagnosed with tongue cancer in December 2025. This was only a little over a year after he was diagnosed with and recovered from non-Hodgkin lymphoma.

In February 2026, he announced that he was in remission again after undergoing radiation therapy for his tongue cancer.

Coulier first announced that he was diagnosed with stage 3 non-Hodgkin lymphoma in November 2024. Non-Hodgkin lymphoma is a form of blood cancer that originates from the lymphatic system. The lymphatic system includes the lymph nodes, bone marrow, spleen, tonsils and lymph tissue throughout the body, forming an important part of the body's immune system.

In an interview with Today, Coulier shared that he discovered a golf-ball sized lump in his groin within a week of falling ill. Despite having undergone multiple scans and tests, Coulier’s cancer only showed up after the doctors conducted a biopsy on his lymph nodes. “[My doctors] said, ‘Hey, we wish we had better news, but you have non-Hodgkin lymphoma, B-cell lymphoma,’” Coulier recalled.

Dave Coulier’s reaction to his diagnosis

“The first thing I said to them was, ‘Wait a minute — cancer?’ [I was] feeling like I got punched in the stomach because it never happens to you. You always hear about it happening to someone else,” Coulier reflected on his shock upon receiving his diagnosis.

Despite this, Coulier still tried to remain as positive as he could. “My joke is that in four short weeks I’ve gone from a Virgo to a Cancer,” he joked. “I’ve tried to retain a sense of reality but also a sense of humor about it.”

Dave Coulier’s treatment and recovery

Following his diagnosis, Coulier underwent six rounds of chemotherapy. He shared, “You hear chemo, and it scares the daylights out of you. The first round was pretty intense because you don’t know what to expect. You don’t know how you’re going to feel. Is this going to hit me immediately? Is it going to be devastating? Am I going to walk out of here?”

Fortunately, his treatment was successful and he was eventually declared cancer-free in March 2025.

However, Coulier’s relief and happiness was short-lived as seven months after his recovery from non-Hodgkin lymphoma, he was diagnosed with HPV-related oropharyngeal tongue cancer.

After his non-Hodgkin lymphoma went into remission, Coulier continued getting regular scans. During one of his scans, the doctors found something at the base of his tongue. While the initial biopsy did not show any signs of cancer, a subsequent scan a few months later showed that the growth had become larger. This prompted Coulier to undergo further tests and he was eventually diagnosed with early-stage oropharyngeal tongue cancer.

Specifically, Coulier was diagnosed with early stage, P16-positive oropharyngeal squamous cell carcinoma. P16 is a protein that is a marker for HPV (human papillomavirus). A P16-positive cancer is caused by infection with HPV-16, a type of high-risk HPV. Fortunately, P16-positive oropharyngeal cancers often have a better prognosis than P16-negative ones.

Dave Coulier’s reaction to his second diagnosis

In a phone interview with Today, he revealed that unlike his first diagnosis, he did not experience any symptoms prior to the discovery of his second cancer. “To go through chemotherapy and feel that relief of 'Woah, it’s gone,' and then to get a test that says, 'Well now you’ve got another kind of cancer' ... it is a shock to the system,” Coulier reflected.

He also added that this was independent of his previous diagnosis. “They said it’s totally unrelated to my non-Hodgkin’s lymphoma. This is a new cancer. ... I said, ‘Are you kidding me?’” Coulier recalled. “We found it early enough where it’s very treatable. It’s got a 90% curability rate. The doctor said the prognosis is good, but we're going to start radiation immediately."

Dave Coulier’s 2025 treatment plan

Coulier underwent radiation therapy, with 35 sessions in total for the rest of 2025. "It’s a whole different animal than chemo. It doesn’t feel as aggressive, but there are still side effects," he shared.

Doctors expect Coulier’s cancer to be cured once radiation therapy is complete, with his treatment ending on December 31, 2025. "I get to start the new year saying, I finished radiation yesterday! It's kind of serendipitous," he joked.

Dave Coulier’s 2026 cancer updates

Fortunately, as of February 2026, Coulier is now in remission for his tongue cancer.

Being diagnosed with two different cancers in one year has been both emotionally and physically draining for Coulier. He reflected, “It’s emotional. It’s psychologically draining. It’s also a big drain to my wife, Melissa, which is the biggest drain on me, seeing how this affects her.”

Nonetheless, Coulier remained optimistic about the whole situation. “The silver lining here is that I had cancer, which helped me detect my other cancer. It seems crazy to be making that statement, but it’s true,” he shared. "Had I not gone in and listened to my doctors and made sure that I got that PET scan to follow up, we would have never found this carcinoma ... and I could be in a world of hurt. This could have progressed immensely, and I would be in trouble."

Family history and inspirations

Coulier’s family history with cancer has made him all the more determined to support cancer awareness and advocacy efforts. “I lost my sister Sharon at 36 years old, breast cancer. I lost my niece Shannon at 29 years old, breast cancer,” he shared. “I lost my mom, and now my sister Karen has cancer. So, over the years I’ve seen what the women in my family have gone through, and it’s been not only an awakening but a learning process.”

He added that his battle with cancer is nothing compared to what his family had been through. “My mom, my sister and my niece were laughing until the day they died,” he recalled. “That was a real inspiration for me to just remember that there’s a lot of happiness.” Coulier’s experience with cancer fuels his commitment and drive to raise awareness about the disease, hoping that his efforts could help save the lives of others.

Cancer awareness initiatives

Coulier’s experience with cancer has also reshaped his lifestyle choices. He started leading a more active lifestyle and became more aware of his diet and what he is putting into his body. This eventually led to his founding of AwearMarket, a “digital marketplace for toxin-free wellness products". AwearMarket launched on December 2 2025, in partnership with the V Foundation for Cancer Research, in support of the Hockey Fights Cancer initiative. Coulier, a V Foundation ambassador and lifelong hockey fan, hopes that this initiative will help advance cancer research.

Moreover, Coulier has taken it upon himself to share his cancer journey with others, hoping that this would help raise awareness and support early cancer detection. “I never wanted to be the poster boy for cancer, but I’m happy to do it,” he shared. "How the heck can I not take this moment to use my voice to say to people, 'Hey, early detection saved my life, and now early detection saved my life again.'"

Since he first announced his non-Hodgkin lymphoma diagnosis back in November 2024, many have heard his story and were inspired to get screened for cancer.

"It sucks having to go through cancer, but it's a magnificent position to be in where you realize you have a voice that can actually save someone's life," Coulier reflected. "I don't know that that has happened, but I like to believe that when I'm talking about it and encouraging people that maybe I helped one person."