Epididymal nodules getting bigger and bigger may become cancerous, though the probability is small, but untreated epididymal nodules may cause diseases such as syringomyelia and even affect the reproductive function. Most of the epididymal nodules are benign lesions, mainly due to tissue lesions caused by external injuries, inflammatory stimulation, and foreign bodies in the epididymis. If not intervened in time, it may cause syringomyelia, epididymal cysts and other lesions, which may affect the sexual and reproductive functions. Epididymal nodules gradually increase in size, swelling and pain, or the disease is not effectively intervened for a long period of time, there is also a certain possibility that it will lead to cancer, although the probability of cancer is relatively small. The appearance of testicular nodules must be taken seriously, as soon as possible to the urology department to consult the doctor, the specialist doctor to formulate a plan for treatment.