An epididymal cyst is a cyst that develops in the epididymis, which is the coiled tube in the rear of the testicle. This generates a benign lump in the testicle and is quite common as people become older.
Each testicle has an epididymis, which is a long coiled tube that runs above and behind it. The epididymis receives sperm from the testes and transfers it to the tubes that transport sperm.
Epididymal cysts are sometimes falsely described as spermatoceles. However, this is a separate type of cyst that contains both fluid and sperm, whereas an epididymal cyst simply contains fluid.
Spermatoceles are epididymal cysts that look like spermatoceles. The spermatocele, however, includes fluid and sperm cells inside it. It is frequently impossible to tell the difference by medical evaluation or even imaging. Nevertheless, both are non-cancerous, which means they are not malignant. They have no effect on reproduction.
