21-year-old Tyrell Rose was last seen at around 9am on Sunday morning Sheffield’s Northern General Hospital.
He did not receive the treatment he was there for and there are now concerns for his safety.
He is thought to be wearing a black t-shirt with a circle motif, black jogging bottoms and white trainers.
If you see Tyrell or know where he is please contact 101 quoting incident number 348 of 10/03/19.