Hi my husband has been diagnosed the pancreatic cancer. He has been having chemotherapy for this. We have noticed that his testicles have gone a dark colour. Would this have anything to do with the chemo, or could it have something to do with a blood infection. He actually passed away on Friday 22/8/14.
Thanks for your question on Chat Doctor. In my opinion he might be having infection and decreased blood supply in testis. Chemotherapy makes patient immunosuppressive and prone to infection. And much chemotherapy Chat Doctor.  They actually damage them and cause poor blood supply to the affected organ. So he may have chemotherapy induced infection of testis and poor blood supply, which lead to blackening of skin over testis.