I am worried if his hand wasn’t clean (from what I observed his personal hygiene practice is that well), or worst he also got broken skin and bleeding that wasn’t aware, will this contacts will it be a exposure for me to infect HIV? (Like fresh blood to wound / wound to wound)

After that happened, I only took a quick look at that area, i don’t remember if i see any blood mark on that area (except my fresh mini cut/wound). I washed my hand with soap immediately. I am scared now, because I saw some reply saying, this could be a way of transmission. But some said it has to be enter bloodstream, which confuses me. Can you evaluate my situation please.  I am full of anxiety now. Thank you.

You needn't be at all worried. In the nearly 40 years of the world wide HIV/AIDS epidemic, there has never been a single case of HIV known to have been transmitted by the sort of contact you describe. It is true that HIV isn't transmitted unless infected blood or fluids enter a person's bloodstream. Personal contact with other persons such as shaking hands, hugging, kissing, or exposure to their cuts or skin wounds, even if they are infected with HIV; and even when the wounds are fresh and wet with blood. You will never be at risk of HIV until and unless you inject HIV infected blood into yourself (like drug use and sharing needles with infected persons) or by sex itself. As additional evidence against the thing you ask about, the household members of HIV infected persons (who are not sex partners) never catch HIV despite years and years of sharing toilets, eating utensils, kitchens, etc -- and even beds -- with the infected person.

So even if you coworker has HIV, you definitely could not have been infected by the contact you have described. You should not be tested for HIV (or any other blood borne infection) on account of the events described. Please don't worry about it, or about any other day-to-day normal contacts with other persons, no matter their own risks of having HIV.

I hope you find these comments reassuring. Let me know if anything isn't clear.

HHH, MD

I hope you dont mind if i ask the last question. 

During the visit in that clinic, they offer me Insti rapid test, even i know there should be a window period, but I wasn’t thinking about, i was like “yea, why not”. When i enter the room,  i saw the test package was brand new unopened, but the guaze (not in package)and the underpad is already put on the desk (still folded). I have no idea how long it has been on the desk , because they have me waiting in the room until the nurse came in, and those stuff are already took out before i got in. If the previous patient / staff touch the gauze and contaminated with with infected blood/fluid, and that gauze use on my lancet prick wound, would it be a exposure risk?  That nurse use that gauze to hold my wound to stop bleeding after the finger prick.  Thank you.

Nobody ever catches HIV from being tested, because of how blood is collected or fingerstick done, how gauze is used, etc. Just asking these qurestions reveals the same abnormal fears and anxieties behind your original question. Just forget about it.

Thank you again, doctor.

Before the thread closed, I just want to recap what you said in the 1st reply. Hope I didn't understood wrong.

This is referring to my knuckle got fresh small cuts or broken skin wounds (a little wet),  contact with his hand (assumed HIV infected), and even at the same time he also got fresh small cuts or skin wounds, it still does not transmit.

This kind of small skin fresh wound-to-wound contact considers as no risk, right?  Thank you.

And yes, those comments mean that whatever cuts or broken skin you had on your knuckles pose no risk from contact with other people, including any who might have HIV. Nobody ever gets HIV in this manner. Have safe sex, don't use drugs by injection, and then stop all worries about HIV.