The Untold Truth Of Sasha Pieterse

During the seven-year run of "Pretty Little Liars," Pieterse pretty much grew up before our eyes — and unfortunately, when she gained weight due to a medical condition, the actress was subjected to online bullying.

In July 2016, Pieterse issued a powerful statement on Twitter about body shaming. "There was major backlash on social media," Pieterse wrote. "People were actually angry that I had gained weight, I was being (and still am) called names, made fun of, the (unfortunate) usual but it wasn't until people started asking and assuming I was pregnant that I decided to say something." She also shared that she had recently learned she had a "really bad hormone imbalance" and sent an important message to her fans: "Do not lower yourself to people who refuse to go higher."

In 2017, while she was competing on "Dancing With the Stars," Pieterse shared more details about her health. She said that she had "very recently" been diagnosed with polycystic ovary syndrome (PCOS), via Teen Vogue. PCOS can cause weight gain, according to Cleveland Clinic.

"[It was] one of the hardest things I've ever been through," Pieterse said, referencing her 70 pound weight gain over the course of two years. "I had no idea what was going on and I didn't have any way of solving it."

We're glad that Pieterse is getting treatment for PCOS, but no one should ever be subjected to body shaming.