Hi,
My dad is 76 and in 2015 it was discovered on ultrasound that his prostate was enlarged. Psa then was 6.9, then 6.7, then 6.5 so upper end of normal for his age. A few weeks ago psa was repeated and was 8.7, should we be worried? I’m panicking and can’t sleep. Could this be benign? Or is that a massive jump in 3 years?