I'm glad I found this post. I have Skittle-sized lumps at the bottoms of both balls. I first noticed them when I was in my early 20s (I'm now 54). Over the years, the lumps have increased in size somewhat. I only notice them when aroused. Occasionally there is a dull ache associated with them when aroused, and I feel discomfort when touching my ball sack (or having it touched) during sex. I've had several different doctors examine me, but none has come up with an explanation, mostly because the lumps are not present during the exam. I have not had an ultrasound, but that's my next request. However, I have noticed that the amount of ejaculate and the intensity of my orgasms have become less over the years (though perhaps that has more to do with being in my 50s). I have NEVER been a smoker of anything, so I doubt there's a correlation there. I am healthy and fairly active, in-shape and not on any medication. Admittedly, though, my libido is lower than it used to be, and intercourse and masturbation are infrequent these days. I sometimes wonder if having more frequent ejaculations would be helpful (and healthful). Someone once told me that getting off a few times per week is actually beneficial to the prostate and other areas of the body. Any professional medical advice would be appreciated.