My son is 23 and last 5 days he has had pain in kidney area and in left testical. He is a minor league umpire and said when he runs it fills like someone kicked him in the balls. This morning he called and said it was a little hard to pee. We to a urgent care yesterday and said he may have epididymis and having ultra sound today. I was wondering maybe even a kidney stone . Have heard of men having same pain with that. Thank you
Dear Shan Chat Doctor.  The pain then moves forward and downwards towards the groin, by when the stone is usually reaching the bladder. However, pain in the scrotum is unusual in kidney stone. Epididymitis is a possibility, but also torsion of testis should be kept in mind. A good clinical examination and ultrasound will help confirm the diagnosisRegards