However, now it looks like father-of-one is ready to return to the public, taking to Twitter on Christmas to share a video of himself with his daughter, Dream.
"Merry Christmas everyone ‼️" he wrote. "Best feeling in the world to see my baby Happy :)"
It appears the 31-year-old also attended Kim Kardashian's Christmas party with sister Khloe posting a video of herself to Instagram holding Dream at the star-studded bash.
Last Friday, Khloe defended her brother, following a negative comment from a fan on Instagram.
"It's a shame Rob Kardashian is a member of the family and he is NEVER mentioned!!!" they wrote in the comments section of Khloe's recent photo.
"My brother is my entire world!" Khloe replied. "He is definitely a king...it is a shame that you [can't] respect us for respecting his privacy. You should not comment if you truly aren't informed on our family."
In August, Kris Jenner spoke about Rob's health to US Weekly. “Rob is good. He’s doing better and better.”