A "hydrocele testis" is an accumulation of clear fluid in the tunica vaginalis, the most internal of membranes containing a testicle. A primary hydrocele causes a painless enlargement in the scrotum on the affected side and is thought to be due to the defective absorption of fluid secreted between the two layers of the tunica vaginalis . A secondary hydrocele is secondary to either inflammation or a neoplasm in the testis.
A hydrocele usually occurs on one side, but can also affect both sides. The accumulation can be a marker of physical trauma, infection, tumor or varicocele's surgery, but the cause is generally unknown.
Hydrocele normally is seen in infant boys, as enlarged scrotum. In infant girls it appears as enlarged labia. However, hydrocele is more common in boys than girls. There is a greater chance of infertility if the hydrocele does not show itself until the child has reached adulthood. The younger the patient is when the hydrocele is found and treated, the lesser the chances of infertility. Some beg to differ on infertility due to hydrocele, but the majority agree upon the chances of infertility due to hydrocele is highly likely, unless the patient is an infant or child of pre-teen age.
During embryogenesis, the testis descends through the inguinal canal, drawing a diverticulum of peritoneum into the scrotum as it descends. This peritoneal tissue is known as the processus vaginalis. Normally, the communication between the processus vaginalis and the peritoneum is obliterated, and the tunica vaginalis is the tissue that remains overlying the testis and the epididymis. Congenital hydrocele results when the processus vaginalis remains patent, allowing fluid from the peritoneum to accumulate in the scrotum.
Wiz Science™ is "the" learning channel for children and all ages.
Disclaimer: This video is for your information only. The author or publisher does not guarantee the accuracy of the content presented in this video. USE AT YOUR OWN RISK.
"The Place Inside" by Silent Partner (royalty-free) from YouTube Audio Library.
This video uses material/images from https://en.wikipedia.org/wiki/Hydrocele+testis, which is released under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . This video is licensed under Creative Commons Attribution-Share-Alike License 3.0 http://creativecommons.org/licenses/by-sa/3.0/ . To reuse/adapt the content in your own work, you must comply with the license terms.