 [ 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 ] you most definitely need to have your back evaluated because of nerve pathways certain lumbar back problems can cause pain to be referred to your groin i suspect you will need an mri to fully evaluate your back