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.
There are many causes of lumps or pain in the scrotum. Most lumps are not cancer, and many are not serious. However, you should always see a doctor if you have pain or a lump in this area. The scrotum is a loose bag of skin which hangs behind the penis in men and boys. Inside it are the two testicles (testes).