Lindsay Lohan has posted a bitter Twitter attack against her father Michael, branding him a "disgusting, deadbeat dad".

Lohan flew into a rage after her dad leaked tearful phone conversations between the two to the press on Wednesday.

Michael Lohan claims the move was an attempt to help his daughter kick her alleged drug addictions - but Lohan insists she doesn't need his help and is considering prosecuting him because the leak illegally breached her privacy.

And she took to her Twitter blog on Thursday to share her disdain for her dad with fans.

Lohan wrote, "He's a deadbeat dad. He's disgusting to do this. He doesn't deserve attention. He needs help.

"It really hurts my mom for me and my siblings. I'd feel the same if I were a mother."

Lohan also offered some insight into her troubled early years, before Michael and her mother Dina divorced.

She adds, "She (Dina) blames herself for staying (with) him for so long, I'd beg her not to leave (because) he always threatened to kill her if she did...after disappearing, then coming home after being gone for several days while cheating on my mother&abusing substances.

"It's so sad that I even have to share this (with) everyone, but I haven't had a real relationship (with) Michael Sr. in years. That is the truth.

"I just hope I can show others how to be strong through times & to be able to stand up for yourself and loved ones no matter what!"