51-year-old Dax Shepard has decided to share his experiences of abuse in his upcoming memoir.

In 2020, the star publicly revealed that he was "molested" as a child, and now he is preparing to candidly detail his painful past in his memoir.

Speaking on his Armchair Expert podcast, the movie star expressed, "I have been acknowledging for years that I was molested, and that alone was a significant hurdle to overcome. I became comfortable admitting it. That was fine."

"Now that I am writing a memoir, the past year has been a struggle to decide if I am brave enough to write down the specifics of what happened."

Dax, who shares daughters Lincoln, 12, and Delta, 11, with wife Kristen Bell, found it challenging to revisit his past for the book.

He confessed, "It took me around four months to narrate that story. While writing, I couldn't shake the thought of people knowing this about me and how vulnerable it made me feel."

"During those months, I experienced unusual emotional spikes and mood swings, sometimes forgetting the cause. But completing it, having it out there, feels like a huge weight off my shoulders."

Previously, Dax connected his childhood trauma to his struggles with addiction.

The actor, who has battled drug and alcohol addiction, shared on The Jason Ellis Show, "If you've been molested, you only have a 20 per cent chance of not becoming an addict. When I heard that statistic, I realized that addiction was almost inevitable for me."