The relaxation response also seems to increase the available level of serotonin, which is a chemical in the body that positively affects emotions and thoughts. While this information is promising, more studies are needed to directly confirm the relationship between massage and levels of serotonin in the brain.
The most common cause of scrotal itch is skin lesions such as psoriasis and eczema, when people can scratch so intensely that they make the skin bleed. But these conditions are of course visible and you say there is no rash, so we must think again.
Some of the main causes are: 1  varicoceles â swellings caused by swollen and enlarged veins within the scrotum. 2  hydroceles â swellings caused by a build-up of fluid around the testicle. 3  epididymal cysts â lumps caused by a collection of fluid in the epididymis (a coiled tube behind the testicles) epididymo-orchitis â inflammation of the epididymis and testicles. inguinal hernias â where fatty tissue or a part of your bowel pokes through into your groin, which can cause the scrotum to become enlarged.