Officers are concerned for the welfare of 20-year-old Kaya Kelly (pictured) who was last seen at Torbay Hospital in Torquay on January 7.
A public appeal issued yesterday (Tuesday) has so far drawn a blank.
Kaya is slim with shoulder-length dark brown which can be tied in a pony tail.
She was last known to be wearing a white fluffy top with flecks of red, black jeans, white pumps and carrying a handbag.
Anyone with information should contact police on 999, quoting police log 710 of January 7.