On Monday, the singer took part in a trend in which followers ask people to share a photo in response to a question.
Halsey was asked to post a photo of her at her “lowest point” and shared an image now deleted to show her fight against an eating disorder.
Later, she tweeted an apology.
“I’m very sorry to post a picture of me depicting my fight against ED without a sufficient trigger warning,” the tweet said. “I was too nervous to post and I didn’t think straight. I had positive intentions. I would never want to harm someone who shares my struggle ”.
She added “with that being said, I am going to hang up now because it has become something I am not emotionally equipped to deal with for now. I hope everything is fine.”
Last year, Halsey talked about mental health and how to live with bipolar disorder.