Originally Posted by Bikingplumber

I am 62 years young, ride and race mountain bikes for last 10 years. I ride 4 days a week approx for 2 hours at a time. Distance and elevation fluctuates depending on terrain.

Since 2015 I have been getting my psa checked every 6 months. I have been consistently at 2.0 until a checkup in 2018. I spiked at 5.8 a huge increase. I went to a urologist and got the full check. No history of prostate problems in my family. He finally asked me if I rode a bike and had sex less than 48 hours of blood draw. I did! He said that was probably it.

i have had 3 subsequent tests since then. The first two were back to 2.0. This last one (last week) was 4.8. I forgot about the 48 hour rule and rode 12 hrs. before test. Urologist checked me out and said other than spiked psa everything is fine.

Had anyone else seen big spikes in psa when riding less than 48 hours prior to blood draw for psa?