What are the Symptoms and Signs of Prostate Cancer?

You're not ejaculating as much semen as usual.

According to the Prostate Cancer Foundation, a decrease in the amount of fluid ejaculated may be a symptom of prostate cancer.Of course, low semen volume isn't always a sign of cancer. Healthline advises that a decreased amount of semen can also be linked to low hormone levels, weakened pelvic muscles, or retrograde ejaculation where semen travels back into the bladder instead of flowing out of the penis.