To better understand hydrocele, it helps to understand the anatomy of the testicle.
The scrotum is a sac of skin that contains the two testicles. Each testicle receives its blood supply through a structure called the spermatic cord.
Anatomy examples include:
- Arslan M, Kilinc M, Yilmaz K, Ozturk A. A new approach in the management of the hydrocele with a silicone catheter. Urology. 2004 Jan;63(1):170-3. 
- Belman AB. Abdominoscrotal hydrocele in infancy: a review and presentation of the scrotal approach for correction. J Urol. 2001 Jan;165(1):225-7. 
- Fracchia JA, Armenakas NA, Kohan AD. Cost-effective hydrocele ablation. J Urol. 1998 Mar;159(3):864-7. 
- Ku JH, Kim ME, Lee NK, Park YH. The excisional, plication and internal drainage techniques: a comparison of the results for idiopathic hydrocele. BJU Int. 2001 Jan;87(1):82-4.