Dorset Police say they are concerned for the welfare of a missing 60-year-old man.
Stephen Durrant, of Counter Close, Blandford, was last seen by his mother on Saturday 10 March 2012 – he has not made contact with his family since.
Officers believe that he may come to some harm.
Inspector Neil Leat said: “Stephen's family have not heard from him for over a week now and such behaviour is entirely out of character.
“I understand that Stephen has some health worries and we have serious concerns for his welfare.”
Stephen is white, five feet seven inches tall, of a slim build, with dark greying hair.
Inspector Neil Leat continued: “I am appealing for anyone who has seen Stephen to contact police urgently.
“It is essential that we find Stephen so that we can make sure that he is safe and well. Anyone with information regarding his whereabouts should call us as soon as possible.”