Lili Reinhart is getting vulnerable. 

The Riverdale recently opened up about her struggles with body dysmorphia and obsessive-compulsive disorder (OCD), expressing frustration over what she sees as glamorization of ultra-thinness.  

"I wish there were more average sized arms represented in mainstream media for women," Lili posted on X, formerly known as Twitter, Sept. 14. "My body dysmorphia has been going crazy because I feel like my arms need to be half the size they are currently?
We've glamorized these skinny arms that, for most of us, can only be achieved if you're a literal adolescent."

She continued in a follow up message, "I truly wonder how anyone survives or gets through this life without having severe BD. Maybe it's a cruel amplified version in combination with my OCD, but damn. The amount of time I've wasted thinking about my arms in the last few months is insane."

Ultimately, the Look Both Ways star shared her story to support others feeling the same way.

"I wanted to throw my own thoughts out there," she added, "to let other women know they aren't alone."

And indeed, her words clearly struck a chord with her followers.

"I always look at my arms the same way, thank you for sharing," one user replied, while another tweeted, "Thank you so much for commenting on this. I feel like my arms ruin every photo/outfit."

This is not the first time the 27-year-old has opened up her struggles with self-image. 

In January, the Hustlers actress revealed she'd been "struggling with obsessive thoughts about my body/weight," and wanted to share so that others knew they weren't alone. 

"I'm here with you," Lili shared on Instagram at the time. "It's challenging to look at your body with love instead of criticism. It's a practice I'm still learning. I didn't think being in this industry, that is so obsessed with womens' bodies and weights, could ever mess with my own body acceptance and positivity…but it has. I wish I hadn't grown up in a time where the media worshipped only one size of women."

And though she noted loving herself is a continuous journey, she was sure to recognize all her body has done for her, and her hopes for the future. 

"My body has carried me through 25 years of life," she added. "All my scars, tears, trauma…I wish I could love it more, even when it doesn't look like it did when I was 20. But I am trying. I know my body deserves equal love and admiration at any size."