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.
Testes secrete the male hormone testosterone. The testes secrete testosterone, which is necessary for proper physical development in boys. In adulthood, testosterone maintains libido, muscle strength, and bone density. Disorders of the testes are caused by too little testosterone production. The testes (or testicles) are a pair of sperm-producing organs that maintain the health of the male reproductive system. The testes are known as gonads. Their female counterpart are the ovaries.