Blink-182 member Mark Hoppus tries to be in good spirits amid his cancer battle.

Ever since he has been diagnosed with cancer, Hoppus kept his hands from playing musical instruments. However, this time, he surprised his fans after he sat in front of his stream while holding his bass guitar.

On the recent episode of his Twitch stream (via Rolling Stone), the bassist slapped the instrument again, marking the first time since he played again. The new bass guitar is custom-made by David Celis and Allan Corona.

"Not only is this the first time that I've tried to play these songs in well over a year, this is the first time that I've felt well enough to play my bass since I was diagnosed," he said, as quoted by Billboard.

While sharing his "life lately" stories, he slowly played the notes of "Not Now" from the Blick-182's self-titled album in 2003.

Mark Hoppus Explains His Diagnosis

Aside from playing his guitar again, Hoppus recently took his time to explain the exact type of cancer he is suffering from.

During the Q&A session, he revealed that he has stage 4 diffuse large B-cell lymphoma. It is the same type of cancer his mother suffered from and beat.

According to the Lymphoma Research Foundation, DLBCL is the most common type of non-Hodgkin lymphoma both in the U.S. and worldwide. It is a type of cancer that develops from abnormal B cells that grow abnormally.

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"The cancer isn't bone-related, it's blood-related. My blood's trying to kill me," he said (via The Hollywood Reporter. "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 IV, which I think is the highest that it goes. So, I'm stage IV-A."

Although it sounds devastating, he tried to lift his mood by becoming hopeful through his mother. Since his matriarch survived cancer thrice - twice from breast cancer and once for the same type of cancer he has - he has someone to talk to and ask advice from.

Due to the disease's aggressiveness, he will continue to receive treatments to lessen the effects and extend his life.

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