What causes fishy smelling sperms?
Patient: my boy friiends sperms smells fishy. I have been to the dr. and have been checked for stds. and results are always negative. what could cause his sperm to smell. It hasn't always been like that. prostate cancer does run in his family. could it be prostate cancer? Doctor: Hello,  It is not a sign of prostate cancer. Foul smelling semen is a sign of infective causes like urethritis.  You can go for a semen analysis to check for any signs of infection. If there is any signs of infection, antibiotics like ciprofloxacin may be required.  Hope I have answered your query. Let me know if I can assist you further.  Take care  Regards, Dr. Shinas Hussain, General & Family physician