Can u get hiv from getting someone elses hiv+ blood on ur hand and finger then go to the bathroom and wipe yourself with the same hand?

Highly unlikely, HIV is transferred from bodily fluids and wiping is not a transfer. The blood is probably dried by then and not on the wiping side of the toilet paper .If you had fresh blood on your hand and touched your self where there was a cut or open wound or fingered yourself than a transfer of blood could cause a HIV infection.

Above circumstances are highly unlikely to result in HIV transmission. Cdc.gov is a reliable site in learning more about HIV transmission.