Dear Doctor,

Thank you very much for the sexual health education you provide. Your work has helped me understand sexual risk more rationally.

I would greatly appreciate your opinion about a possible risk of syphilis transmission in my recent situation.

A few days ago, I had protected vaginal intercourse with a sex worker in Germany at a fixed-location massage establishment. A condom was used correctly throughout the entire intercourse and did not break or slip. The intercourse lasted only a few minutes.

At that time, I had a small healing folliculitis lesion (a dry scab) on the lower abdomen / pubic area, approximately 5 cm above the base of the penis. The lesion was already dry, not bleeding, not painful, and without any visible open wound.

After the encounter, I showered normally and did not notice any pain or signs suggesting that the lesion had been re-injured.

My main concern is whether syphilis transmission is realistically possible if there was  skin contact between this a small healing folliculitis lesion and a partner’s lesion such as a chancre, while vaginal intercourse itself was fully protected by a condom.

In this situation, would you recommend any testing, or is routine observation sufficient?

Thank you very much for your time.

Kind regards,

Congratulations on your safe sex practices- they will do much to keep you from acquistion of STIs including HIV.  The encounter you describe was virtually no risk. In Germany commercial sex workers at fix-location establishments rarely have STIs.  Bu law they are required to have regular STI testing; in addition, it would be bad for return business if clients were to get STIs.  Even in the unlikely event that your partner had an active syphilis lesion, surface contact with a lesion at the site of an open, healing folliculitis lesion would not effectively transmit syphilis.

In this situation,  your syphilis, as well as most STIs would be so low that I would not bother to test and would simply observe yourself for the development of symptoms which I think is most unlikely.  I encourage you to move forward without concern.  EWH

Dear Dr. Hook,

Thank you very much again for your previous reassuring reply.

I would like to ask a brief general question about syphilis transmission:

1. If a condom is used correctly throughout vaginal intercourse (no breakage or slippage),   and uncovered areas such as the penile base, scrotum, or nearby pubic skin have no visible cuts, bleeding, ulcers, or moist lesions,  even if there were contact with a partner’s chancre，is the real-world risk of acquiring syphilis considered very low or negligible?

2. I understand that mucosal areas (such as the glans penis or urethral opening) may be more susceptible if unprotected or microscopically injured.  However, for thicker keratinized skin areassuch as the penile base, scrotum, or nearby pubic skin  that condoms do not cover, is transmission still medically plausible in the absence of visible skin disruption, even if there were contact with a partner’s chancre?

3.In your clinical experience, have you seen cases where a person correctly used a condom, had no obvious open lesions on uncovered genital skin, and still acquired syphilis from such exposure?

Thank you very much for your time and for your continued work in sexual health education.

Kind regards,

2.  Correct, although as explained above, the risk is low

3.  No

EWH

Dear Dr. Hook,

Thank you very much for your clear and reassuring replies. They have helped me feel much more at ease.

Although I am already 30 years old, it was only after reading your forum that I truly began to understand sexual health and safety. I really appreciate your work in educating people.

Kind regards,

Dear Dr. Hook,

Thank you again for your helpful advice.

As a single man living in Germany, I may in future consider occasionally have protected vaginal sex with sex workers and always use condoms.

This will be my final question. From a clinical and public health perspective, is there any meaningful difference in STI risk between sex workers working in fixed, regulated venues (such as massage or brothel settings) and independent CSW who are contacted through websites but also receive clients at a fixed indoor location (for example rented apartments or studios, including workers from different countries such as Asian workers)?

Or is consistent and correct condom use the main factor in reducing STI risk regardless of the setting?

Thank you very much for your time and for your valuable sexual health education.

Kind regards,

In Germany sex workers working in licensed settings are required by law to be checked regularly get checked for STIs, including HIV.  Sex with them is relatively low risk and when condoms are used, there is almost no risk for STI.  On the other hand, working independently in non-licensed situations may not get checked as regularly.  In those situations, as others, condoms are a highly effective mechanism for minimizing STI risk.  

The best practices are:

1.  Ask partners if they are infected, when they were last checked, and what the results were.

2.  Use condoms correctly and consistently for all penetrative sexual encounters.

This completes this thread which will be closed shortly.  Take care.  EWH