The wife of former Australian cricket captain Steve Waugh has undergone brain surgery.

Lynette Waugh, 38, was rushed to Prince of Wales Hospital in Randwick on Thursday and was operated on for a blood clot on her brain on Friday.

The Nine Network reported that her father-in-law Roger Waugh said she was "fighting and fighting very well".

Steve's twin Mark and his wife Kim have visited Lynette at the Prince of Wales Private Hospital.

"We've seen her, she's going well," Mark said.

Steve and Lynette have been married for 15 years and have three children, Rosie, 10, Austin, six, and Lily, four.

When Waugh, 41, was named Australian Father of the Year last year, he lauded Lynette's role during the years he spent away on tour.

"While I was away for a lot of years playing cricket, (Lynette) was basically the lone parent," he said at the time.

"So I congratulate Lynette, this award is probably more for you than me."

Waugh played the last of his 168 Tests in January 2004 after chiselling his place in Australian cricket lore as one of the toughest and most prolific players in the game's history.

He scored 10,927 runs at an average of 51.06 and took 92 wickets at 37.44.

In his 57 Tests as captain, he led Australia to the top of world cricket with a ruthless approach.

Lynette wrote a chapter My Life With Steve in his latest book Out of My Comfort Zone, addressing life as a cricket wife.

The former school teacher rarely gives interviews, but spoke to Calcutta newspaper The Telegraph just before her husband retired from Test cricket.

"We met on our last day at high school (1983), he was in East Hill Boys, while I was across the road in East Hill Girls," she said at the time.

"Our relationship, therefore, began two decades ago. It's been a wonderful innings."

She admitted it was tough being at home alone with the children for long periods during Steve's cricket career.

"It wasn't easy ... For much of the time, I ended up being a single parent," she said.

"Initially, only I missed him but, in recent years, the children probably missed him more."

She said there were mixed feelings two years ago as the family approached his retirement together.

"In some ways, there's sadness ... Having said that, I'm happy he will be home and is going to watch the children grow," she said.

"Actually, that he's going to retire is great for the family. Today, there's peace. Right now, my children and I just wish to take in every moment."

She said among Steve's biggest contributions to Australian cricket was his role with players' families.

"He had a big hand in getting the families more involved with cricket," she said.

"In effect, Steve made it easier on the families."

The Waughs are heavily involved in children's charities, supporting disadvantaged youth through the Steve Waugh Foundation, while Steve is a patron for Camp Quality and the Spastic Centre of NSW.

He is also is well known for his contributions to schools for disadvantaged children in India.

It is believed Mrs Waugh was operated on by high profile neurosurgeon Charles Teo.

Like Steve Waugh, Dr Teo is renowned for his fighting attitude to even the toughest cases and has been described as surgically aggressive.

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