I am wondering if you can advise on whether I pose an increased risk to future partners.

2 years ago I visited a high class escort around 8 times always wearing protection.

I am wondering if I should make future partners aware of these past incidents. If there is any chance that I will increase their risk of cancer I would need to let them know. But obviously if there is no real increased risk I would like to keep these incidents to myself at first.

many thanks

In general, nobody is obligated to tell sex partners of past HPV infections, only if they have an active infection at the time they begin or continue a sexual relationship. Just about everybody gets genital HPV at least once, and for everyone with a known HPV diagnosis (e.g. warts, women with abnormal pap smear, etc), there are at least 10 others out there who are infected but not diagnosed. Therefore, informing partners of past infections does nothing at all to reduce their risk of getting HPV.

You may also be thinking about the possibility of persistent infection. But that's uncommon more than a few months after warts (or an abnormal pap) have cleared up. HPV DNA may persist for life in some persons. But for the most part even these people are not infectious, i.e. the virus cannot be transmitted to partners. 

In addition, there is generally no need to inform future partners of past sexual partnerships, even particularly high risk ones. Further, most "escorts" (by which I mean expensive female sex workers by appointment, as opposed to brothel workers, bar pick-ups, etc) are at fairly low risk for STD. Many select low risk clients (e.g. married men), know how to protect themselves, and get tested frequently. So I don't see your past experiences as especially high risk. Of course anyone having non-monogamous sex should be tested for STDs from time to time, but it sounds like you have been doing that and have had negative results -- or, in the case of your warts, treated. 

Having said all that, many couples discuss their past sexual lifestyles either before they first have sex or at least before embarking on long term commitment. But this is a relationship issue, not one directly related to STD/HIV risk and prevention.

I hope this has helped. Let me know if anything isn't clear.

HHH, MD

Oral sex rarely transmits HPV, partly because oral HPV infections are much less common than genital; and when infection is present, oral-genital sex appears to be an inefficient mode of transmission. And you used a condom as well, which is highly protective. Your risk of having HPV, including the high risk types, definitely is no higher on account of the exposure a few years ago. 

Best wishes. Apologies again for the delayed response.