
STRYPER's MICHAEL SWEET Is Battling Papillary Thyroid Cancer: 'I Believe That It Will Be Behind Me Soon Enough'
December 9, 2025STRYPER frontman Michael Sweet has revealed that he has been diagnosed with papillary thyroid cancer, the most common type of thyroid cancer. The diagnosis came less than a month after he underwent a biopsy of a nodule in the right lobe of his thyroid.
Earlier today (Tuesday, December 9),Sweet shared the following message via his social media: "A lot of you have been asking about my health and well being so I wanted to give you an update.
"First, thank you all for your continued thoughts and prayers. It always means the world and I can't thank you enough for taking the time to think of me.
"I spoke to my endocrinologist and unfortunately the biopsy that was performed on 11/17 (a nodule in my right thyroid) came back positive. Malignant.
"I'm scheduled for a CT and an ultrasound next Monday 12/15 (following the Christmas show) and then I'll be meeting with my doctor/surgeon on 12/22 to figure out a plan moving forward.
"We start recording the new STRYPER album on 12/28 and that will remain on schedule. Once we finish tracking, I'll be undergoing another surgery to remove my right thyroid and the nodule itself.
"This is papillary thyroid cancer, so the good news that it's slow growing and something that my doctor seems very optimistic about.
"Interestingly enough, I sang the album 'When We Were Kings' 2 months (to the day) after my first thyroidectomy, and I never felt better vocally.
"Unfortunately (and more recently),I've been experiencing a few issues vocally and it feels a little more 'crowded' in there. Now I understand why.
"My sincere apologies for not being to perform at 100% lately. It's been a bit of a burden to be honest, but I'm confident that things will get better.
"Even though it's concerning to even hear the 'C' word (much less be diagnosed with it),I believe that it will be behind me soon enough. I'll get in and deal with it and heal up and be ready for 2026.
"Please don't worry about me as I know and trust that God has a plan.
"I've always felt some kind of peace in being able to ask for prayer here. Whether it's for someone else or for myself, you always take the time to do that and it is a true blessing. It's been a constant in my life and I believe that you all are friends. Family.
"I love you guys and I can't wait to see you on the road in 2026.
"Merry Christmas and I hope you all are enjoying the new STRYPER Christmas album!
"Always remember - He Is The Reason For The Season".
According to the Columbia University Department Of Surgery, papillary thyroid cancer makes up about 80% of all cases of thyroid cancer. It is also the thyroid cancer with the best prognosis and most patients can be cured if treated appropriately and early enough.
In December 2023, Sweet underwent partial thyroidectomy, the surgery to remove part of his thyroid gland. Five months later, he told Steve Mascord of White Line Fever TV about the procedure: "I had nodules a nodule in each side of my thyroid, so thyroid nodules. And one of those got larger and larger. It was biopsied and it was cancer. So they removed half of my thyroid, [the left] half. [The right] half I still have. I have a nodule there still that's cystic they're gonna keep an eye on. I had to start thyroid medication. But I had the surgery back in December — December 15th [of 2023]."
Regarding how the operation affected his singing voice, Sweet said at the time: "I could feel the pressure of the room and the space in that area with those nodules getting larger. I could feel it. And it's been like that for a few years. I've had 'em for a while, but I had to have it removed because of the cancer, and I dealt with it right away. But having the side of that thyroid removed, they had to cut through some muscles. So I can really feel it — it just feels different, it's the only way I can describe it. My vocal nerve was not damaged. I went to the best doctor in Boston who specializes in that, specifically not damaging the vocal nerve. He uses a very particular monitoring system, and he kind of wrote the book on that. And no damage to my vocal nerve — thank God. But still, it feels weird when I sing. It feels like someone kind of has their hand on my throat. It's the only way I can describe it."
STRYPER released its long-awaited Christmas album, "The Greatest Gift Of All", on November 21 via Frontiers Music Srl. The 10-song effort includes five original Christmas tracks and five traditional Christmas cuts, including remakes of "Reason For The Season" and "Winter Wonderland", both of which originally appeared on a 1985 single and were also made available on the 1986 re-release of STRYPER's debut EP, "The Yellow And Black Attack".
STRYPER guitarist Oz Fox recently sat out the band's Latin American tour on advice of his doctor. The 64-year-old musician, who underwent a brain surgery in May 2024, was once again temporarily replaced by Howie Simon (JEFF SCOTT SOTO, GRAHAM BONNET),who previously filled in for Fox on several tours in the past.
STRYPER's latest all-original studio album, "When We Were Kings", came out in September 2024.
A lot of you have been asking about my health and well being so I wanted to give you an update.
First, thank you all...
Posted by Michael Sweet on Tuesday, December 9, 2025