Welcome to the forum. Thank you for your confidence in our services. Directly to your questions and then some further comments.
1) The "tiny lumps" on your thighs were not warts, which are never cured or cleared by merely "picking" them. Once a true wart appears, it cannot be cleared by picking at it, scraping, etc; and warts never goe away on its own in less than several months. and if they were, probably not due to the sexually transmitted types of HPV. Could they have been continuing molluscum contatiosum? Maybe, if they appeared typical for MC (smooth, pink, often with a dimple in the center). However, MC rarely keeps recurring for as long as 10 years. Most likely you had minor folliculitis (hair follicle inflammation), which is very common in that part of the body.
2) Everybody gets genital and/or anal HPV infection, usually several times. At any point in time, at least 50% of all healthy people are carrying HPV and can transmit it to their partners. Fortunately, the vast majority of infections cause no harm. Your sex partners are no more at risk of catching HPV from you than they are from any other partners they may have; and you can never avoid additional HPV infections yourself as long as you continue to be sexually active. However, as MSM who has anal sex with other guys -- either insertive (top) or receptive (bottom) you probably are continuously and repeatedly exposed to HPV.
Testing for HPV is controversial, but often is done in MSM especially those who have had receptive anal sex (bottoming). Depending partly on the results, periodic examination by anoscopy or proctoscopy (looking inside the rectum) is a good idea. Anal Pap smears also are often done in MSM -- all this to detect possible anal cancer ore pre-cancer before it becomes serious. HPV vaccination is an important prevention. However, after several years and partly depending on your age, the HPV vaccine becomes less helpful because it is increasingly likely that you have already been infected with most or all the 9 HPV types the vaccine prevents.
All these are things you should discuss in person with a doctor or clinic experienced in anorectal health and/or STD and HPV issues in MSM. Such providers usually can be easily found in most of the US and other industrialized countries.
I might have additional thoughts with a little more information. What is your age? Can you say more about your sexual lifestyle -- regular partner, multiple partners, frequent new partners, condom use, etc? Where are you (country and maybe city, province, etc)? What is your HIV status? Have you been tested regularly for STDs, especially gonorrhea, chlamydia, syphilis and HIV?
I hope these initial comments are helpful. In the meantime, you might look at some reliable online resources about HPV. Good places to start are with CDC or its counterparts outside the US (e.g. www.cdc.gov/sti) and the sponsor of this forum (the American Sexual Health Association, www.ashasexualhealth.org). On both sites you can follow links to find detailed information about HPV.
HHH, MD
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