Men with metastatic prostate cancer have higher rates of inherited gene mutations than men with non-metastatic prostate cancer.  Knowing about DNA mutations might help you make better treatment decisions. And you can also tell family members about their risk.

Recent studies have shown that metastatic prostate cancer inherited mutations in the DNA-repair genes, such as the BRCA gene, can help guide treatment decisions as well as increase cancer risk in their family members.

These mutations are more common in men with metastatic prostate cancer compared with men whose prostate cancer hasn’t spread outside the prostate gland.

Men with advanced, metastatic prostate cancer should ask to be tested for inherited DNA-repair mutations.  Men who are considering active surveillance should think about evaluating their genetic status and adding this information to their decision process, too.

https://www.mskcc.org/blog/study-suggests-men-metastatic-prostate-cancer-should-be-tested-inherited-mutations