Last night I went to the strip club and got two  lap dances from two different females while I was fully clothed. This morning I put on the same jeans and I noticed right by  my knee there was a brownish orangish small stain that looked exactly like a little droplet of blood, probably just a few centimeters in diameter. my anxiety is telling me that maybe one of the girls was menstruating and maybe during the close contact a small drop of blood got on my jeans. My skin around my knee area is completely intact. I’m not entirely sure but let’s just say it was a drop of blood. I immediately took a towel and tried washing it out with hot water and it faded into a light orange almost completely faded away. I then changed jeans and through those jeans in the laundry. 

My questions are 

1. Is this a risk for HIV, hepatitis B, hepatitis C or herpes at all? Or anything else? I read that there isn’t really a risk for HIV infection with a few drops of blood on intact skin, but what about hep b and c? world health organization says no risk for HBV with a couple drops on intact skin. Pretty sure I’m vaccinated for B as I think it’s a requirement for grade school but will double check.

2. After I touched my jeans and washed the stain out (probably 7 hours passed by since the supposed blood drop would have gotten there) there I masturbated and have been touching my lower waist while pulling up my pants? Is this any means of transmission or risk? Or no because the stain was dry and it was indirect contact between an article of clothing and my hands? The hot water would have also probably killed any virus or anything also? 

Please let me know and thank you so much

Three years ago, we discussed your hightened anxieties about STDs. This question suggests the same issue applies to blood as well as sexual exposures. The answer is pretty much the same. In a way, public health experts and health educators have done a poor job explaining blood as a source of HIV and other blood-borne viruses, like the hepatitis B and C viruses (HBV, HCV). Commonly it is said that blood exposure carries risk of transmission, without explaining the details. The fact is that exposrue to small amounts of blood, and contact of bloon on the skin -- and even in the mouth or eyes in small amounts --carries little or no transmission risk. There is no risk at all from the sorts of events you describe. Even sex with HIV infected women during menstruation is no higher than at other timesn -- and even with entirely unprotected sex for several minutes, the HIV transmission risk -- if the woman is infected -- averages once in every 2,500 events. Given that risk, what could it possibly by by a bit of blood on intact skin? And superficial cuts and abrasiona probably do not significantly elevate that risk. 

For those reasons, there has never been a case of HIV, HBV, or HCV infection known (or even suspected) t0 have resulted from contact with blood in the environment.

Those comments pretty well answer your questions, but to assure no misunderstanding:

1) You correctly understand what you have read, including information from WHO and whatever other sources you have found. No risk, no worry.

2) As implied by the inherently low risk even with unprotected sex, it takes exposure to LOTS for any signficant transmission risk. The events you describe could not tranit nearly enough virus to be a risk -- with or without washing etc.

So nothing at all to worry about. Do not be tested for anything and go about your life as normal. Let me know if anything isn't clear.

HHH, MD