What is spermatocele? what are its symptoms?

Here is some...: Spermatocele is sperms-containing cyst(s) usually in the globus major (head) part of epididymis, which is very common-up to 30% of men as demonstrated in scrotal US and usually asymptomatic although occasionally some discomfort may be felt and its large size (up to 10-15 cm) may induce inconvenient bulkiness. At times, it may clinically be confused with hydrocele until surgery. More? Ask urologist