The last couple of years have been filled with dramatic health ups and downs for Full House actor Dave Coulier. In October of 2024, he was diagnosed with non-Hodgkin lymphoma. Seven months later, he publicly shared that he was cancer-free after going through chemotherapy.
Now, the 66-year-old has announced that he has been diagnosed with a new form of cancer.
Coulier was diagnosed with HPV-related oropharyngeal tongue cancer in October 2025. It is not related to his previous diagnosis. While appearing on Today on December 2, he opened up about what it has been like to process this news.
“A year has flown by like that. It’s been a roller coaster,” he began.
“To go through chemotherapy and feel that relief of whoah, 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,” he went on.
Prior to being diagnosed with his first form of cancer in 2024, Coulier knew something was likely wrong after noticing an enlarged lymph node in his groin that was reportedly the size of a golf ball. A biopsy would later confirm that he had non-Hodgkin lymphoma.
However, this time, he says there were no noticeable signs. It was only during a routine follow-up exam after he completed chemotherapy that his doctor noticed something out of the ordinary on his scan.
"A couple of months ago, I had a PET scan, and something flared on the scan. The doctor said, 'We don't know what it is, but there's something at the base of your tongue,’” he said.
After going through a painful biopsy, Coulier received the news he was dreading.
“They said it’s totally unrelated to my non-Hodgkin’s lymphoma. This is a new cancer. ... I said, 'Are you kidding me?'"
The good news is that Coulier’s new form of cancer is highly treatable.
"The doctor said the prognosis is good, but we're going to start radiation immediately,” he said.