Talk to Urologist on Testicular Lump

Hey there, 2 years ago, I had an injury while playing sports. time passed and I hadn't feel anything un-common. 6 months ago, I felt a lump on my testicular area, which was not painful and big. I consulted a doctor and I was told ke it's no big deal. Like still, I'm not having any pain or any other single symptom of testicular cancer.

But now, 2 years have passed and it feels like its size has grown a little bit. and I'm having a discomfort in that area now.

please guide me that what should I do about it.