73-year-old Peter Sale was diagnosed with prostate cancer seven years ago. Hormonal therapy has been keeping the disease at bay.
Professor Sanchia Aranda, the head of Cancer Council Australia, explains that as prostate cancer grows more aggressive, it is likely to stop responding to traditional treatments.
Cancer of the prostate is the second-most diagnosed cancer in Australian men, with one in five at risk of developing the disease.
The survival rate is generally high - 95 per cent when the cancer is localised.
But if it progresses to the metastatic stage - that is, if it moves outside the prostate - patients have just a 30 per cent chance of survival.
Professor Sanchia Aranda explains that during the metastatic progression, the cancer changes and develops the capacity to spread.
Listen to the feature in Bangla in the audio player above.
