Early symptoms of testicular tumor are often not obvious, which may show painless enlargement of unilateral testis, dull pain in scrotum, lower abdominal swelling, etc. Subsequently, pain and other symptoms may occur due to compression of peripheral nerve tissues by the enlarged testis. Testicular tumors are more common in cryptorchid testis patients, in addition, heredity, hormone and other factors are also related to the occurrence of testicular tumors. Early symptoms of testicular tumor are often not obvious, patients may have scrotal mass, dull pain in scrotum, lower abdominal swelling and other discomforts, scrotal mass is often a unilateral mass, seldom bilateral onset at the same time, the mass is hard, the normal elasticity of testicle disappears, the enlarged testicle may compress the surrounding nerves, followed by pain. The enlarged testicle can pull the scrotum, resulting in a sensation of swelling in the scrotum. When a testicular tumor occurs in a patient with cryptorchidism, the scrotum is empty, and a painless mass can be palpated in the groin or lower abdomen. Symptoms of testicular enlargement, pain and swelling can also occur in diseases such as orchitis. Therefore, if you find the above symptoms, you cannot blindly diagnose testicular tumor by yourself, you should go to the hospital in time and ask the doctor to find out the cause.