A organization has warned that outmoded NHS standards put Black men at disproportionate risk of dying from prostate cancer.
According to Prostate Cancer UK, ministers have a "moral imperative" to amend the regulations to allow general practitioners to proactively discuss disease screening with at-risk groups.
New data from the National Prostate Cancer Audit found black men are more likely than any other ethnic group to be diagnosed at stage 3 and 4 - when the cancer has already spread.
This is severely hindering survival chances and a key factor in why they are twice as likely to die from the disease, experts say.
Analysts looked at how many men were diagnosed with stage 3 and 4 prostate cancer in the general population in England.
They found for every 100,000 black men, 440 are diagnosed at this late stage compared with 295 of their white counterparts.
Those diagnosed at a later stage in their 60s are also 14 per cent less likely to get NICE approved treatment on NHS when compared to white men, the research found.
Professor Frank Chinegwundoh MBE, Consultant Urologist at Bart's Health NHS Trust, said: 'The disparity that we can see from this data is shocking, and deeply disappointing.
'This is a consequence of current NHS guidelines; these guidelines treat all men the same, regardless of the fact that some individuals - Black men in this instance - have higher than average risk of prostate cancer.'.
Experts believe there is now sufficient evidence that men at higher risk should be proactively offered PSA screening, with benefits outweighing any risks.
Under current rules, responsibility is left to men to find out their risk of disease and decide whether they want to request a blood test
Sir Chris Hoy's terminal diagnosis at 48 has also renewed calls to implement national screening for those at greatest risk, without waiting for the results of the TRANSFORM trial into how this should be done.
Prostate Cancer UK wants the Government to update NHS guidelines so that GPs can proactively start having conversations about prostate cancer with Black men from the age of 45, explaining their higher risk and talking them through the pros and cons of the PSA blood test.
Keith Morgan, Associate Director of Black Health Equity at Prostate Cancer UK, said: 'The evidence reveals the depths of inequity that exists when it comes to diagnosing prostate cancer and backs up what Black men have been telling us for years about the challenges they face.
'Now that we have the data there is a moral imperative to urgently address this health equity scandal.'
He added: 'We can't change the fact that Black men are at highest risk of being diagnosed with prostate cancer, but we can change the fact that they are dying twice as much from a cancer that is treatable if caught early.
'That's why we're redoubling our urgent call for the Government to overhaul these outdated NHS guidelines and allow GPs to start conversations about the option of PSA testing with men at the highest risk of prostate cancer.'