Epididymis are a bunch of tubular structures which carry sperms from the
testesTesticular cancer
Undescended testicle and joins to form vas. These are present on the posterior and lateral aspect both the testes.
Although majority of disease situations in scrotum are associated with pain or discomfort (from dull ach to severe pain), some diseases may just present with painless swelling. Cancer of testes is one of the disease which may present with painless swelling of the testes.
It is a good practice to self palpate the testes during shower and look for any change in size.
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