"The 9" x 12" mass has shrunk down to the size of a marble," he wrote.
However, he also revealed that he contracted COVID-19 in January along with his wife, Susan, though they've since recovered.
"My COVID is in the rearview mirror," he wrote. "COVID kicked my a** pretty good, but I'm double vaccinated & feeling much better now. I heard that the vaccine can help folks with Long Haulers. Maybe that's the cause of my quick improvement."
Bridges said he's been working out with a therapist, and he's been able to get off needing oxygen assistance while walking.
"The sound it makes reminds me of Darth Vader," he joked.
On a more serious note, Bridges said his goal was to be able to walk his 35-year-old daughter, Haley, down the aisle at her wedding and do the father-daughter dance without the oxygen assistance, which he achieved.
Meanwhile, in a previous website update he wrote in March that he said he withheld from fans until he got better, he shared he was definitely struggling with the COVID-19 symptoms.
"Sue spends 5 days in the hospital. Me…? I'm there 5 weeks," he wrote at the time. "The reason I'm there so long is because my immune system is shot from the chemo. My dance with COVID makes my cancer look like a piece of cake."
"But ... here's the weird deal," he continued. "While I had moments of tremendous pain (screaming singing, a sort of moaning song all through the night) getting close to the Pearly Gates, all in all, I felt happy and joyous most of the time. This brush with mortality has brought me a real gift — LIFE IS BRIEF AND BEAUTIFUL. LOVE IS ALL AROUND US, AND AVAILABLE AT ALL TIMES."
"This cancer thing is bringing on feelings of precociousness & gratitude & good old fashion [sic] love & lots of it, big time," Bridges wrote. "I'm feeling so much of it comin' my way, & man I appreciate it. It's contagious, all this love, like some kind of positive virus."
"This cancer is making me appreciate my mortality, appreciate impermanence," he added. "I'm realizing if I have sh*t to share, now's the time."