Early symptoms: The testicles are stone-like when touched by hand, with a hard texture; there is a heavy downward feeling, even affecting walking. If you hold up the testicle with your hand, it is like holding a stone, and there is a certain sense of weight. The testicle is stone-like and hard to the touch of the hand, which is significantly different from the testicle that is uniformly swollen and has a soft texture when inflammation occurs in the ordinary testicle. Despite the hardness of the testicle, there is no pain when pressed and touched, which is also different from orchitis. Since testicular tumor is formed by massive growth of tumor cells, it is a substantial lump. After growing to a certain extent, the weight of the testicle increases abruptly and the patient will have a heavy downward feeling, which even affects walking. If the testicle is held up by hand, it is like holding a stone, and there is a certain sense of weight. Late stage symptom: Testicular enlargement, which is the result of the endless and massive multiplication and proliferation of tumor cells. The shape of the enlargement is not uniform, sometimes very irregular, or the side of the testicle with tumor can be enlarged and protrude extraordinarily; men have pain in the lower abdomen, back or groin (the area where the thigh and abdomen are connected); the fluid in the scrotum suddenly increases.