The Blink-182 bass player and vocalist revealed recently that he was undergoing treatment for cancer and later told fans that he was suffering from stage four lymphoma.
Now, he's reassured his supporters that he has received the 'best possible news', saying that 'the chemo is working'.
Speaking on Twitter, the 49-year-old wrote: "Scans indicate that the chemo is working!
"I still have months of treatment ahead, but it's the best possible news."
He continued: "I'm so grateful and confused and also sick from last week's chemo.
"But the poison the doctors pump into me and the kind thoughts and wishes of people around me are destroying this cancer.
"Just gonna keep fighting."
It's a piece of positive news, but Mark has also revealed that the treatment is causing him to suffer.
On a Twitch stream, Hoppus spoke of how he was dealing with 'chemo brain' and how that 'absolutely sucks'.
He explained: "I forget people's names, song titles, anything.
"People will be talking to me and then five minutes later I'll ask them a question, and they're like, 'I just told you that five minutes ago.'"
Hoppus does have his mum in his corner, too. Coincidentally, she battled against the same form of disease herself and came out of the other side, so she's available to offer words of wisdom and advice, as well as understanding exactly what he's going through.
He said: "Oddly enough, we have the exact form of cancer.
"And she beat it. So I've been able to talk to her and bond with her quite a bit."
Explaining his diagnosis on another Twitch stream, he said: "My cancer's not bone-related.
"My classification is diffuse large B-cell lymphoma stage 4-A.
"Which means, as I understand it, it's entered four different parts of my body.
"I don't know how exactly they determine the 'four' part of it, but it's entered enough parts of my body that I'm stage 4, which I think is the highest that it goes. So I'm stage 4-A."
Either way, let's just hope that Hoppus can keep his spirits up and continue fighting. With any luck, he'll be back playing shows and entertaining crowds before too long.
"I still have months of treatment ahead of me but I'm trying to remain hopeful and positive. Can't wait to be cancer free and see you all at a concert in the near future", he said.
Featured Image Credit: Instagram
- The Pogues' Shane MacGowan has been taken to hospital and his wife is asking for prayers
- Jonnie Irwin claims he was axed from A Place in the Sun after revealing he had terminal cancer
- Mark Wright Fears For His Health Much More Now After His Recent Cancer Scare
- Mark Wright Opens Up About Cancer Scare After Operation To Remove 12cm Tumour