Did they do a semen analysis? That would tell you alot. My hubby has double varicoceles (one in each testicle). He has good count and motility, but poor morphology. Morphology determines the shape/form of the sperm. For example if they are abnormal forms they may have two heads, two tails, no tails, etc. After they do a regular semen analysis and if there is an issue with morphology they will have him do a strict morphology test. I would imagine a hydrocele is in the same family as varicocele, but I am not sure how it affects fertility. Does he need surgery? Have you have a full consult with your Dr since the tests? If not I would recommend sitting down and getting more answers. Good luck!
I am sorry you are going thru this. I don't know what they mean. Have you googled them or asked your Dr? What did he say?