Al Pacino is “haunted” by a childhood penis injury.

Al Pacino spares no details in his new memoir, “Sonny Boy.”

In the book, excerpted from a People magazine article on Thursday, the Oscar-winning actor writes about a traumatic childhood injury to his penis that he says still makes him “squeamish” about talking about it.

Pacino recalls how, as a young man, he “regularly avoided death,” but at one point came dangerously close to self-mutilation.

He says: “I walked on a thin iron fence and did my tightrope walk. It had been raining all morning and sure enough I slipped and fell and the iron bar hit me right between my legs.”

The Godfather star writes that after his fall he was “in so much pain I could barely walk home.” Luckily, Pacino was found “moaning in the street” by an elderly gentleman who carried him back to his aunt’s apartment.

As he waited for the doctors to arrive, he remembers lying in bed, “with my pants down to my ankles, while the three women in my life – my mother, my aunt and my grandmother – were in a semi-panic state Penis poking and poking around.”

“I thought, ‘God, please take me now,’ when I heard them whispering to each other during the inspection,” the New York native writes in “Sonny Boy.”

Pacino, now a father of four, goes on to tell readers that his anatomy “held on to him along with the trauma” but that to this day he is “haunted by the thought of the accident.”

Pacino’s childhood injury is far from the only painful memory he shares in the 384-page report, released Tuesday via Penguin Press.

In “Sonny Boy,” the “Scarface” star looks back on his mother’s death from an accidental drug overdose in 1962, as well as the death of his grandfather and father figure Vincenzo Gerardi a year later, which Pacino describes as the “darkest death.” period” of his life.