When I was 18 year old (2010), I was addicted of frequent masturbating. One day I started feeling huge pain in my one testis and stomach. After some time I noticed that, one testis in which i was feeling pain has been swelled . Pain was too high and i was admitted to emergency ward. After emergency treatment I got some pain relief but I noticed that my that testis has been swelled as sphere of 3-4 cm. My treatment was started and after one month swelling reduced by 100%, but still size was reducing. After 3-4 months there was very small knot (like a chickpeas) . I asked doctor, he told everything is fine. But know after 8 years (2018) I'm wondering about that, what was that, have I lost my one testis, can this knot cause cancer??? Please suggest if any one have idea about this.