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Expert Q & A Answers About genital itching

I itch in the testicle region. And one testicle looks bigger than before...also, my scrotum can get really red. What’s going on?

Over the last year, I’ve been itching in the testicle region...it comes and goes. My scrotum can get really red, and sometimes it feels like shooting pain or insects biting. One of my testicles also looks bigger than before. What’s going on?