HIV Transmission Risk: Blood Contact & Oral Cuts - Expert Explanation

It is very unlikely that you could get AIDS from ingesting someone else's blood, even if you have cuts in your mouth. The virus that causes AIDS, HIV, is not very stable outside the body and is easily killed by the acidic environment in the stomach. Even if some HIV did manage to survive and reach the cuts in your mouth, it would be very unlikely to infect you because the virus needs to enter your bloodstream to cause infection.

That said, it is still important to avoid coming into contact with someone else's blood, as there are other infections that can be spread through blood, such as hepatitis B and hepatitis C. If you do come into contact with someone else's blood, it is important to wash the area with soap and water and see a doctor if you have any concerns.