Testicle Pain Anatomy
To better understand testicular pain, it helps to understand the anatomy of the scrotum and testicles.
The scrotum is a sac of skin that contains two testicles, which produce sperm. Next to each testicle lie the epididymis, vas deferens, and spermatic cord. The scrotum also contains blood vessels and fat.
Each testicle receives its blood supply through the spermatic cord. A blocked spermatic cord cuts off the blood supply to the testicle.
The epididymis is a thin, folded, tube that is about 15 feet long. The epididymis receives sperm from the testicle in the scrotum. The sperm mature as they pass through the epididymis. The epididymis ends in the vas deferens, through which sperm pass to the prostate gland.
Male genital anatomy:
- Inguinal canal and scrotum
- Prostate, testes, and penis
- Prostate and bladder
- Locations where lymph node swelling can be felt
- Abul F, Al-Sayer H, Arun N. The acute scrotum: a review of 40 cases. Med Princ Pract. 2005 May-Jun;14(3):177-81. 
- Assaf GJ. Non-palpable testicular lesion: the case for testicular preservation. Can J Urol. 2006 Apr;13(2):3034-8. 
- Beddy P, Geoghegan T, Browne RF, Torreggiani WC. Testicular varicoceles. Clin Radiol. 2005 Dec;60(12):1248-55. [16291306 ]
- Buckley JC, McAninch JW. Use of ultrasonography for the diagnosis of testicular injuries in blunt scrotal trauma. J Urol. 2006 Jan;175(1):175-8. 
- Eaton SH, Cendron MA, Estrada CR, Bauer SB, Borer JG, Cilento BG, Diamond DA, Retik AB, Peters CA. Intermittent testicular torsion: diagnostic features and management outcomes. J Urol. 2005 Oct;174(4 Pt 2):1532-5; discussion 1535. 
- Shabbir M, Morgan RJ. Testicular cancer. J R Soc Health. 2004 Sep;124(5):217-8. 
- Williams DH, Karpman E, Lipshultz LI. Varicocele: surgical techniques in 2005. Can J Urol. 2006 Feb;13 Suppl 1:13-7.