Re: Prostate cancer worries
To rule out prostate cancer the best you do is to take your boyfriend for a PSA test. This is a easy test done on blood sample. However, prostate cancer in testicles would be possible only if there were metastasis. I think that he is confronting a different issue, in both; testicle lump and back pain. The doctor will confirm the problem.
You are sensitive to his family medical history on PC. That being the case I would recommend you to be vigilant on any rise of his PSA having it tested every 4/5 years. Usually PC becomes a matter of concern when we get into the forties.
Wishing you the best,