Australian boxing champion Ruby Singh has revealed she has frozen her eggs, joining a growing number of women who are prioritising their careers before starting a family.

Ms Singh, in her mid-30s and ranked among the world's top 10, won the WBC Asia Championship belt in April and is now preparing to head to the United States to chase her next world title.

While her focus remains on boxing glory, Ms Singh said she didn't want to risk her chances of having children later in life.

She has just completed an egg-freezing cycle at Adora Fertility in Australia – a move she said has lifted the weight of the 'ticking clock' many women in their 30s feel.

'Freezing my eggs had always been at the back of my mind,' she said. 'In my early 30s I started to think about it but I didn't really make a move because I was travelling around a little bit.'