 [ Symptoms ] have lower back pain off and on sometimes testicals hurt bad also what could this be  since june my son has been having back pain off and on when standing a lot and it worries me because half the time my testicals hurt really bad do not no if i should be worried is this something i should get looked at what could cause this [ Disease ] which virus are you speaking of the hiv virus for example is spread through body fluids her additional bloody fluids could certainly increase the chances of your infection passing to her therefore your suggestion is not a good idea