Hello about 4 days a go I sat on my husbands lap and crushed his nut sack between the couch and his leg, after that they bruised and swelled a little bit. He has been taking advil and cold packing it but tonight it is really swollen and he has been having a fever for the past few days what should we do go in to a doctor or wait it out?

He should go to the doctor because of the fever - fever is a sign of infection. Ordinarily he would just wait for the bruise to go down.