A hernia can be considered. An ultrasound can be considered to image the testicle and rule out other, more serious, causes - such as infection or torsion.
If negative, I agree with the urology referral. I would also consider a general surgery referral to evaluate for a hernia. If present, it would need to be surgically repaired.
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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