What Causes Testicular Pain Post A Bilateral Hip Replacement Surgery?

after bilateral hip replacement a few years ago I had sever pain in my testicles, after about a month it went away I was divorced at the time couple of years later I was with a women for a few weeks trying to have sex the same sever pain came back I was treated for some kind of infection with antibiotics even though nothing showed up in a culture, pain and girlfriend went away Another year or so another girlfriend getting errections pain came back, girlfriend left so did pain Could there be blockage, scar tissue, something caused by the long hip surgery that can cause pain during sex