Testicle massage (Japanese:Kogan Massage) is a massage applied to the lymph nodes of the testicles and their surroundings.
The birthplace is Thailand, it is said that men treat the men and have "Japkasai" and other names.
Its efficacy is said to be vitality enhancement, renal function recovery, relief of back pain. In addition, the health increase of the testicles increases the blood flow, the hardness at erection is better, the amount of semen will also increase.
In the method, warm the testicle with the hot cloth for several minutes with the scrotum, then the scrotum loosens and the flexibility increases. Apply lubricating oil such as baby oil to the scrotum. After that, it is to do a massage.