Hello. On my right testicle I've noticed a slightly hard tubular anomaly over the course of a year or two. It is tricky to relocate and I give up after a few attempts because of the discomfort from palpating, so I've only noticed it accidentally on 3 or 4 occasions. This evening I found the bump again, but I may have felt a vigorous writhing movement as though it were a live parasite as I attempted to get a better feel of it. It was very frightening and happened very quickly so I can't be 100% sure of my sensations. I still can't locate it again after several attempts and I'm scared if I try too hard it may migrate to another organ. I've read a little about Varicocele but in my case it seems to be a singular object rather than a spaghetti-like mass. I'm a 26 year-old who has spent time in West Africa as recently as 2012 so perhaps a parasite such as Filariasis is not so far fetched? Your response is much appreciated.