LINDSAY LOHAN is messed up because of her parents abusive relationship– says her mom DINA and then there’s THAT startling rape allegation. WARNING –Graphic content!

 “I need to make the world aware that Lindsay is messed up because her father is messed up," Dina Lohan told the NY Daily News .

Dina alleged that  Lindsay's ongoing problems stem from incidents in which she witnessed her father beat her mother in 1986 — and rape her four years later — going into graphic detail about both incidents.

 “Lindsay saw her dad abuse me — that’s why she’s so screwed up,” Dina told the NY tab, which related Lohan brought  police and medical reports, as well as a photographs illustrating her injuries from the 1986 attack to the on-the –record shock claim-fest. “She saw a lot of crazy stuff. I want the world to know the root of her problems.

“Lindsay saw all the beatings and all the abuse. She said, ‘Stay, mommy, don’t leave’ … she said, ‘I’m so sorry for making you stay.’ But I didn’t stay for Lindsay — I wanted all my kids to be happy."

Dina, 50, told the News the attack — one of many she says she endured during their 22-year marriage — occurred after they dined in Cold Spring Harbor, New York.

Michael had spent the night getting drunk and was high on cocaine, Dina claims, eventually leading him to punch her in the face with a closed fist.

Dina backed up her claim to the paper, with a photo of she brandishing a bruise under her right eye, holding an infant Lindsay.

(A hospital record shows Dina sought medical attention December 4, 1986 for facial “blunt trauma.")

Dina said that “when Lindsay saw the photo, she was furious. She said, ‘Tell the world! Talk about it!'"

Michael denied the story to the paper, admitting while he did strike his ex, the circumstances were completely different.

“I came in at 2 o’clock in the morning after being out with some friends," Michael stated. "I walked in and she hit me with an ice tray. With the back of my hand I slapped her in the face. Yes, it did happen in 1986. Were there any charges? No, not at all. I had a big black and blue on my neck from her.”

As for the alleged sexual assault, Dina said it took place in 1990, during a time he was in-and-out of jail for convictions tied to his former career as a stockbroker.

 “Michael was addicted to cocaine, like most stockbrokers back then,” Dina said. "He had a lot of bad stuff going on."

She said the rape occurred on Valentine's Day 1990, a timeframe when she and the children were living with her parents. She said Michael showed up in a limousine, "out of jail and on another coke-fueled night," and trying to rebuild their relationship.

“He said, ‘I love you and I want to be with you,’ but then it went dark. It went dark really quick,” Dina said, adding that the alleged rape occurred as Lindsay and her siblings were sleeping. "I just knew I had to stay quiet … I [didn't] want to wake them.”

Dina, at her parents' urging, went to the ER and had a rape kit performed, but said she never pursued further punishment for Michael, who was jail-bound at the time anyway because of the stock-related infractions.

Not so, Michael says, recalling of the incident: “I went over to her parents’ house and made love to her … how can you rape a person when they’re on top of you?”

Michael said the rape accusation only sprouted when Dina heard a girlfriend of his in the background on the phone later that night. RadarOnline.com noted that Lohan added they were separated at the time.

"She called me the next day, crying," he recalled. "I said, ‘Let’s work this out.’ And I got back with Dina. There were no charges.”

Michael said of Dina's accusation-loaded interview: “She’s bringing this up now because she’s drinking and partying with Lindsay. And she keeps robbing Lindsay.

"She is the devil.”