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.
Some other causes of male infertility include: 1  Illicit drug use. Anabolic steroids taken to stimulate muscle strength and growth can cause the testicles to shrink and sperm production to decrease. Use of cocaine or marijuana may temporarily reduce the number and quality of your sperm as well.  Alcohol use.