Dear friend, welcome and thanks for entrusting your query here at HCM!
I am Dr. Prasad Akole (Critical Care Expert- http://bit.ly/Dr-Prasad-Akole) and am glad to address to your query here.
The pain in the testicular sac can be due to hydrocele
(fluid accumulation), bleeding in the sac, twisting of the testis or infection.
of the scrotum
may help differentiate the cause.
Clinical examination is important.
If there was no history of trauma, bleeding is uncommon as the cause.
Is there any discoloration of the scrotum? Is there increased size on one side?
Please be guided by a good surgeon’s advice.
Use good scrotal support.
I hope you are fully satisfied with the guidance I gave.
Hope I have answered all your questions. I would be glad to answer any further queries. Please ask for any clarifications before closing and rating this answer.
Thank you and Good luck!