What causes pain in testicles?
Patient: i'm 19yrs old. for the last 3 days my testicles have been hurting on and off, there are no lumps and i have not been sexually active for the last 2 years. only thing i have done is masturbated. i'm not feeling sick or anything like that. just that they hurt. sometimes the pain goes down my leg. but that's about it. they are normal color and everything Doctor: Hi,  You may have a condition called varicocele. This is the dilation of the veins in the scrotum and this causes pain during physical activity and ejaculation. There is also a chance that you may have the pain because of frequent ejaculation. If that is the case then I suggest you abstain from is relation until the pain goes away.  Hope I have answered your query. Let me know if I can assist you further.  Regards, Dr. Manuel C See IV, Urologist