Police say they are becoming increasingly concerned for the welfare of a man who has been missing from Ashford's William Harvey Hospital since Tuesday.
Officers renewed their appeal on Friday for information about Shaun Watson, who was last seen at 9am on that day.
He is described as 5ft 8in and of a medium to large build with short cropped, thinning brown hair. He has distinctive green alien head tattoos with a black pattern on both hands.
He was wearing a dark/royal blue T-shirt, light coloured jogging bottoms and white trainers when he went missing.
Sgt Kim Cameron said: "Shaun has health issues and he hasn't taken his medication with him so it is important that we find him as soon as possible.
"Although he went missing from the William Harvey Hospital in Ashford he does have links with Dover, where he is originally from, and Whitstable and Canterbury. I urge anyone who believes they may have seen Shaun to contact us."
Please phone Kent Police immediately on 101 quoting reference number KP-20120717-0426 or the Missing People organisation in confidence on 0500 700 700.