Testicular enlargement is the result of endless multiplication and proliferation of tumor cells. The shape of the enlargement is not uniform, sometimes very irregular, and the side of the testicle with the tumor can be swollen and protrude extraordinarily. 2. The testicle is hard and hard when touched by hand. This is significantly different from the testicle that is uniformly swollen and soft when the testicle is inflamed. Although the testicles are hard, there is no pain when you press and touch them, which is also different from orchitis. Testicular heaviness Because testicular tumor is formed by the massive growth of tumor cells, it is a substantial lump. After growing to a certain extent, the weight of the testicle increases suddenly, and the patient will have a heavy downward feeling and even affect walking. If you hold up the testicle with your hand, it is like holding a stone, and there is a certain sense of weight. 4.Transmittance test negative Generally, when syringomyelia is present, the light transmission of scrotum and testicles is enhanced and the light transmission test is positive. However, if the testicular tumor grows dense and solid, and there is no liquid inside, the translucency will be greatly weakened.