"Women don't speak about the things that they're going through. We feel so isolated and feel so alone,"
Tammin also discussed her experiences with bullying and body image.
The actress recently opened up about being bullied as a child about her weight on Instagram - having once weighed 95kg when she was 14 years old.
"I've learned throughout my life and journey that unhappiness is the fastest pipeline to hate," Sursok said.
"When people aren't happy, they shame other people and bully.
"For me, I look back, and I realise it was never really about me. It was about them. And people who put other people down, it's because you're showing something that they don't like about themselves.
"I've been through extensive therapy because for me I still feel like that overweight girl. And I don't really ever feel like I'm good enough.
"It's important to talk about, and I think a lot of people struggle with bullying. And for me, if my platform can help just one person, then my job is done."
WATCH: Pretty Little Liars Album Tammin Sursok Gives Birth To Second Child