Well-known New Zealand broadcaster Susan Wood has suffered a serious head injury in a fall at her home.

Wood was taken to Auckland Hospital on January 10 with a head injury, TVNZ reported today.

In a statement her sons Alex and Matt said she was recovering after being discharged from hospital and was rehabilitating.

"We thank all involved in her care at Auckland Hospital for their dedication, their expertise and their humanity. The treatment of our mother has been outstanding. We also appreciate the concern and goodwill shown by others."

The family asked for privacy.

Wood is one of the current hosts of TVNZ's Q+A programme and is a presenter for Newstalk ZB.

She has graced New Zealand television screens for more than 20 years.

She became TVNZ's first Australia correspondent, the first host of Midday, Breakfast and Close Up, and gained national prominence as a regular stand-in on the Holmes show.

A TVNZ spokesperson said: "We were shocked and saddened to hear of Susan's accident."

"Susan is a much respected and admired member of our newsroom. She will be in her colleagues' and our viewers' thoughts as she recuperates.

We will be supporting Susan in her recovery, and we ask that her family's request for privacy during this challenging time is respected."

Fellow broadcasters and supporters were rallying behind Wood.

Broadcaster Bill Ralston said Wood's accident was "really sad".

"I just hope she gets well soon. She's a great person and a great talent, and we want to see her back on our screens and our radio."

Other colleagues and friends have tweeted their support.

"Just awful news. Get well Susan," TVNZ reporter Garth Bray said.

Aucklander Lucy Knight, who is recovering from a severe head injury received when she was bashed after intervening in an attempted robbbery, also tweeted: "Sorry to hear about Susan Wood's accident. I hope she does get some privacy to recover in. Head injuries can take some time."