How long after a needle biopsy until psa levels settle back to"normal" if you need another psa test? Thanks JC

PSA. Generally we wait at least 3 months after a biopsy before checking a PSA. If you check it any sooner you might see a falsely elevated PSA as a result of the biopsy. Some feel 4 to 6 weeks is adequate. I always wait 3 months.