Hi, im 16 and  i recently been to the gp for a general check up, and now suddenly i've been more aware of the testes. I have noticed on the inside of the testicle there is tiny, tiny hard spot almost on the inside of my right testicle. I have no pain no discomfort no swelling or anything. then about 3 weeks ago said everything was smooth yet i'm still a bit concerned, i also feel groves on the testicle that are smooth which i think is just the general shape. If anyone can help me identify what it is, would be appreciated