One testicle drooping, one testicle not drooping. What's going on?

1, congenital dysplasia if the

patient because of gene mutation or embryonic maternal exposure to radioactive substances, resulting in testicular development abnormalities, etc., easy to cause testicular ptosis a non-ptosis.

2, testicular cyst

patients unilateral testicular cyst due to trauma, chronic inflammation stimulation and other reasons, cyst volume can make testicular ptosis. The other side of the testis normal, so there is no ptosis phenomenon.

3, testicular tumor

patients one side of testicular cell abnormal hyperplasia, after the formation of tumor, can make testicular volume increase, while the other side of testicular normal, thus causing the above symptoms.