hello, im 23 and have a tiny hard bump on my left testicle at the top prob the size of a white head on a small spot.. . it doesnt ache, hurt, not swollen and testicle itself isnt hard...ive had it for atleast 6 years.. wot do u think it could be? i dont no if its the appendix of testis, a cyst, a blocked vein or even sperm blocking from years of masturbation.. I used to masturbate alot in early teens .