Sex before PSA test, (Post Op)

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Bob D
Regular Member

Date Joined Mar 2008
Total Posts : 199
   Posted 6/15/2008 9:25 PM (GMT -6)   
I heard that having sex before a psa test pre op, can increase psa readings.
Does anyone know if this is true post op? I go for my 3 month check this week.
I am wondering if any activity ( sex/orgasm) will effect the test.
Age 59, psa 4.7 in Jan. 08. Biopsy: one positive sample out of 13. 1% of one sample cancer. Prostate removed on 3/5/08. Nerves spared. Cath out 12 days later. Continence good. Only insurance pad when going out. First erection five days post op and have been improving well since then. Full erection now possible but not as easy to maintain as pre op. But I am pleased with the progress so far. Married to same wonderful woman for 39 years.
She is still beautiful and sexy as ever. A great help in my recovery !!

Veteran Member

Date Joined Aug 2007
Total Posts : 1015
   Posted 6/15/2008 11:39 PM (GMT -6)   
Hi Bob D,
Since you are lacking a prostate, sexual activity should have zero effect on the PSA test.
Such activity prior to the PSA test can cause elevation in the PSA, but not to a large degree.
No worries.

Barry ~ (a.k.a. "Idaho") - Prostate Cancer Forum Moderator


Da Vinci Surgery July 31, 2007… 54 on surgery day
PSA 4.3  Gleason 3+3=6  T2a  Confined to Prostate

1st PSA  09/11/2007  <0.04 (undetectable)

2nd PSA 12/10/2007  <0.04

3rd PSA  03/17/2008  <0.04

My web site:

Regular Member

Date Joined Jul 2007
Total Posts : 86
   Posted 6/16/2008 1:26 PM (GMT -6)   
It has been my experience both pre op and post op that sexual activity before the psa test is a very bad idea. I try to do my best to have four quiet days before they draw the blood. Ulta sensitive tests are sensitive.
Age 45 at DX
DX 8/05 Gleason 5, Mayo clinic Second Opinion Gleason 6, PSA 2.8
Da Vinci surgery Dr. Dasari, Centennial Nashville 9/24/05
Pathology Report Gleason 6, 15 % on left side only very near to the edge of capsule, too close to call on margins, doc's said to watch it very closely, final decision T2A
PSA's have basically ranged from <.04 to .05 for two years.
no E.D. and no Incontinence, feel very blessed
PSA Nov 07 = .06
PSA Dec 10th 07 =.07
PSA Jan 4th 2008= .1
Started Guided IMRT on January 7th, 2008 to treat prostate bed and lymph nodes, completed on March 6th, 2008
PSA April 18th 2008 =.03

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