Like My Knee Was Bleeding I Knew It Was Bleeding
No risk for HIV with this encounter
Hello, I'm Dr. Branch, thanks for using 'Ask a Doctor'. I'm not sure what the hut is that you are talking about, and what the chances there would be that bodily fluids would be on it, but it does not sound like this would be considered a possible encounter for transmission of HIV. HIV does not survive long outside the body, maybe a few hours under ideal circumstances, and there are no cases that I know of in which someone has been infected with HIV with a contact like this. I do not believe you need to be tested for HIV, but if you were really concerned, you could test at 1 month (which would be about 95% accurate with a 4th generation test) or 3 months (at which point it would be over 99.9% accurate and would be considered conclusive no matter the possible exposure).
I hope that helps, please let me know if you have any other questions about that, and I would be glad to discuss it with you further.
I wouldn't worry about HIV
Yes, in summary, I wouldn't worry about HIV, if I am understanding the situation right (that you touched something with your knee which was bleeding).
Please let me know if you have any other questions, I'd be glad to help any way I can.