Hello Thanks for query . Assuming that you have done ultrasound scanning of scrotum and mass of a size of 6 cms in testicle was revealed and Urologist has diagnosed it to be a Testicular Tumor . The testicular tumor presents with a mass which may be with pain or painless . Being a Urologist he is more experienced to diagnose such tumors and there are less chances of it to be wrong .He has rightly diagnosed it after careful clinical examination and which is supported by and confirmed on scanning .. However you can get it confirmed by getting Fine Needle Aspiration Biopsy and taking second opinion of Oncologist This will help to allay your anxiety and confirm the diagnosis . Please note removal of the testis is the only treatment option for Testicular Tumor. Dr.Patil.