1831, plural of Modern Latin chelicera, from Greek khele claw, talon, cloven hoof, from PIE *ghel-wo-, from root *ghel-una- jaw, + keras horn (see kerato-). Earlier chelicer (1835), from French chÃ©licÃ¨re.
Testicular diseases can be classified as endocrine disorders or as a disorders of the reproductive system. The testicles are well-known to be very sensitive to impact and injury. Blue balls is a slang term for a temporary fluid congestion in the testicles and prostate region caused by prolonged sexual arousal. The most prominent diseases of testicles are: 1  testicular cancer and other neoplasms. 2  swelling of a testicle, caused by hydrocele testis.  inflammation of the testicles, called orchitis.
Any type of trauma or injury to the testicles can cause severe pain and discomfort. The most common mechanism of testicular trauma occurs from blunt trauma (~85%), which can occur from sports injuries, a direct kick to the area, car accidents, and straddle injuries.