testicle pain post trauma

I received a very hard pinch to the testicles 3 months ago. Since this incident I have experienced a dull ache in my left testicle that is made much worse about 24 hours after ejaculation. The post ejaculation pain has recently changed and become a series of very painful surges in the left testicle arriving a few minutes apart, that can go on for hours before calming. The pain is not present during or immediately after ejaculation it comes on 24 hours later. An ultrasound scan revealed a marble sized mass about a month ago which was a suspected hydrocele but this was before the recent serious pain described above. It has also been suggested that I may have a swollen epididymis due to the trauma i recieved.The problem I am having is that research on these two diagnosis make no mention of the post ejaculatory pain along with the level of pain I am experiencing. The left testicle is tender compared to the right one and i am avoiding sex due to the pain it brings on. Any ideas on what I am dealing with and what my next move should be?
thank you

[Kevin Pho, MD]

Difficult to say without evaluation.  I agree with the ultrasound.  You may want to confer with a urologist that the hydrocele isn't causing the pain.  More detailed imaging can be done with an MRI.  

If the pain continues, you can consider a cystoscopy to look for a urethral polyp or stricture that may lead to the discomfort.

These options can be discussed with your personal physician.

Followup with your personal physician is essential.

This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.

Kevin, M.D.
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