Masterbation & PCA

[Tamarind5270]

Been on Firmagon since 2016. Undectectable ever since. Started vacation 6 months ago. PSA now 0.180. I masterbate twice a night. Could masterbation be causing my PSA to rise?

[Tall_Allen]

No.

[pjd55d]

this subject comes up - no pun intended - in our support group and the general consensus is that masturbation and bike riding too close to when the PSA test is done can result in higher numbers. It is not part of my situation - but that seems to be what several guys in the group report. What does your Dr say ?

[Kevinski65 in reply to pjd55d]

How can you get a ‘bone on’ with firmagin?

[Christ3lover]

The PSA rising from ejaculations or bike riding is based on having a prostate. Mine was completely removed. How it works with a local recurrence I don't know. How it works with a prostate only treated with radiation I don't know. I still avoid any sexual activities the day or two before my PSA test because my PSA is very important to monitor my cancer. I'm on my 3rd BCR, my cancer confirmed this time by a PMSA PET scan.

[petrig]

The mean absolute PSA change + standard deviation 1 hour, 6 hours, 24 hours, and 48 hours after ejaculation was 0.8 ± 1.32 ng/mL, 0.3 ± 0.66 ng/mL, 0.2 ± 0.33 ng/mL, and 0.4 ± 0.40 ng/mL, respectively. The mean relative PSA change ± standard error 1 hour, 6 hours, 24 hours, and 48 hours after ejaculation was 41 ± 4%, 9 ± 1.5%, 8 ± 1.3%, and 10 ± 2.3%, respectively. The absolute and relative changes in PSA concentration noted 1 hour, 6 hours, and 24 hours after ejaculation were statistically significant (P = 0.0001)