Is it true that recent frequent ejaculation will give you high psa reading. any scientific basis for that?

Congestion...: Sex arousal-ejaculation exaggerates circulation to the prostate and generate the muscles around/inside the prostate to contract so to "increase" PSA. Similar concern has been raised in PSA after long bite ride or digital rectal exam (DRE) or transurethral instrumentation. But largely, such related increase in PSA is minute, not clearly significant; in practice, do PSA some 12 hours away from such