I was diagnosed with testicular cancer in 2015. And it it wasn't for the swift action of the NHS, things might have been very different. I discovered the lump purely by accident and only mentioned it to my doctor in passing. Within a week it was diagnosed and the very next day the testicle/tumour was removed. I was told that the tumour could have been growing for up to 18 months, and if it was left any longer would have most likely spread to my stomach or and lungs.