Dr. Hanif warmly Welcomes you! Thanks for consulting at my virtual clinic. I have carefully worked through your case, and I can realize your health worries. Being your physician, I assure you not to worry as I will take care all of your medical concerns.   The word bump doesn t explain anything to be diagnosed in. You need to upload pictures and ask a detailed question. Or go to a general surgeon and get him checked in-office there. Usually, there may be a skin infection due to staphylococcus bacteria if bump is allocated only to the skin area. Otherwise there are far many reasons of the bump if its inside the scrotal skin. It may be a swelling of testes, testicular torsion, epididymitis, or scrotal hernia caused by inguinal hernia. Some more likely, some less likely. Hope I answered all of your health concerns . If you have further questions, feel free to contact me anytime. If satisfied, please give a five Star rating and don t forget to Close the discussion. Have a wonderful time ahead.   Best Regards! DR. MUHAMMAD M. HANIF USA