Number of relatives with prostate cancer

Prostate cancer risk

1 first-degree relative (father, brother, or son)

2 to 3 times higher (than the average population risk)

2 first-degree relatives (father, brother, or son)

5 times higher (than the average population risk)

1 first-degree relative and 1 second-degree relative

8 times higher (than the average population risk)

3 first-degree relatives (father, brother, or son)

11 times higher (than the average population risk)