I had an encounter with a female CSW that included oral sex during a frottage massage. there was a condom that was used.

I understand the encounter overall is safe however can you explain the risk of trich during the massage. i reference https://www.plannedparenthood.org/learn/stds-hiv-safer-sex/trichomoniasis 

they state it can be transferred by it simply having genital secretions on your hands. I dont have any symptoms but want to know how safe this.

thanks 

I think the statements you found on the PPH website are overly conservative.  Several generalizations, then my assessment and advice regarding the specifics of your encounter.  Among common STIs trich is less well studied than most other STIs . That said both receipt of condom protected oral sex and frottage are considered by most experts as safe, no risk sex.  There are no data to suggest that trich is transmitted to men through contact of external skin (including the skin of the penis)  with infected secretions, nor through hand to genital spread of genital secretions (i.e. receipt of masturbation in which a partner's secretions get onto you.  

Your encounter.  Most people, even CSWs do not have STIs,  Further, for most STIs, including trich, most single penetrative genital exposures do not result in transmission of infection.   For all practical purposes, trich is NOT present in the oral cavity and is not transmitted through oral sex.. I will not repeat the generalizations I made above but they add to my confidence that you are not at risk for trich.

My advice.  The encounter you describe was virtually no risk for any STI, including trich.  I would go forward and not worry.  I hope that the information I have provided will be helpful to you.  EWH

I took a Std test for syphilis which was negative. 

I also did urine tests for gonnorhea and chlamydia which were negative. Can I move on not worried about ANY stds and is there anything that I could give my partner that would be considered sexual in nature by virus/infection. 

Thanks and that will be all.

 Take care.  EWH

I have one last question.

I have had multiple occasions of massages with covered oral as described above.  Not just this one over time. 

As mentioned I did a test for the 4 main ones. 

Recently my partner described some pain by her groin on one side. After carrying out some medical tests that did not include an STD test they noticed she had her right side of her groin lymph nodes swollen which they said was fighting an infection. She has no other sexual partners and just myself. 

Kindly confirming I couldn't have transmitted Trich or NGU to her. Those are the 2 only that I have not been tested for. Should I consider getting tested for those 2 or anything else based on this new information regarding her groin issues and my exposures.

Could groin pain be from an STD lile NGU or trich. I didn't do any vaginally or unprotected oral as mentioned.

Thank you and that will be all.

As I have already told you, trich is not acquired from receipt of oral sex.

My assessment is unchanged.  EWH