A burglar stole property from a house at Oak Court, Sprotbrough, while its 86-year-old occupant lay in hospital.
Police in Doncaster are appealing for witnesses to the incident, which happened between 6pm on Monday and 6pm on Tuesday.
Officers are also seeking information about a break-in at a house on Winchester Way, Scawsby, between 1pm and 2.30pm on Tuesday. The culprit forced a UPVC door and stole a television, jewellery box, mobile phone and £500 cash.
Anyone who saw anything suspicious is urged to ring South Yorkshire Police on 101.