So I recently noticed my partner had a mini lump in his scrotum and told him about it, he says that it's been there around 6 years because he remembers feeling it when he was younger - he's now 23. He seems unconcerned and not doing anything about it but I'm rather worried. Is it possible it could be testicular cancer even if it's been there for years? I don't know much about it and the Internet is rather confusing so I shan't look there, if anyone has any advice or ideas that'd be great!