The 36-year-old French designer posted a photo on Instagram showing his entire upper body, arm and head wrapped in a bandage, exposing only his face.
Rousteing said he “did everything to hide this story from as many people as possible” because he felt “too embarrassed” by his scars from the injury.
Writing on Saturday, he said: “I am finally ready to share this. I hid it too long and it’s time for you to find out.
“Exactly a year ago, the fireplace inside my house exploded. I woke up the next morning at Paris’ Hospital Saint Louis.
“The talented staff at that famous hospital, dealing with the incredible number of Covid cases at the same time, took care of me. I don’t really appreciate them,” he added. .
Rousteing said he hid his injuries from his “teams and friends”, adding: “Honestly, I’m not sure why I’m embarrassed, maybe it’s these obsessions with perfection that fashion is known for. and my own insecurities.
“In my recovery, I just worked day and night to forget and create all my collections, I was trying to dream up the world in my collections and at the same time, hiding the scars with face masks, turtlenecks, long sleeves and even many rings all my fingers through many interviews of photoshoots. “
He said the experience made him realize that social media gave him the power to “only reveal what you want to show”.
“It’s kind of allowing us to create our own special narrative that avoids what we don’t want to see or show: This is our new world,” he continued, adding that he is “healed, happy and healthy” now.
Rousteing, who became Balmain’s creative director in 2011 at the age of 25, said her recent Spring / Summer fashion show on September 29 was all about “celebrating recovery”.
He thanked the production team and models and his “Balmain family” for “not just my 10 years of Balmain but my rebirth”.
“Now, I feel free, very good and very lucky,” he wrote. “I start a new chapter with a smile on my face and a heart full of gratitude.
“To the doctors and nurses in Saint Louis, and to all those who helped me during this long period of recovery and kept my secret: a deep thank you. I love you all.”
Rousteing’s friends and fans left messages of support in his post. Donatella Versace wrote that she was “glad you’re safe”, while members of the Kardashian family including Kim and Kylie Jenner sent love to the luxurious designer.
Kris Jenner wrote:
“I know how hard it is to share, but I just know it can help people in different ways … Your message of hope and strength and focus and love will always inspire everyone of your contact .. you are a ROCKSTAR and I love you! God is so good. “