West Mercia Police are growing increasingly concerned for the welfare of Andrew Thompson, who went missing this week.
Andrew, aged 51, left his home near Ledbury, Herefordshire, on Thursday morning (19 October) but did not return.
He was spotted on Friday at Mags Day Centre in Worcester, but has not been seen since.
He is described as black, 5ft 9ins tall and of stocky build. He is bald, wears glasses and has several gold ear rings in each ear. He may be wearing tracksuit bottoms, trainers and a black waterproof jacket.
Anyone who has seen Andrew, or someone matching his description, is asked to contact West Mercia Police on 101 immediately.