Normal prostate ultrasound performance: The prostate envelope is clearly echogenic, with scattered small dots of light inside, evenly distributed. The echogenicity of the inner gland is low and the echogenicity of the outer gland is high. The actual prostate cysts: There are congenital cysts and acquired cysts, and congenital cysts include Muller’s duct cysts and true prostate cysts. The actual cyst is a result of the embryonic period in which the renal ducts remain in the prostate gland to form prostate chambers to store secretions. True prostate cysts are caused by the narrowing of the prostatic ducts due to obstruction of the glandular growth during embryonic development, resulting in obstruction of the lumen and gradual retention of the contents. It can occur in any part of the prostate. Acquired prostate cysts include inflammatory prostate cysts, parasitic prostate cysts and cysts formed by degenerative changes in prostate cancer. They can occur in any part of the prostate gland. The clinical manifestations of prostate cysts: generally small cysts are asymptomatic, larger cysts with compression of the urethra can cause difficulty in urination, prolonged urination time, dripping urine, and in severe cases can cause urinary retention. If the ejaculatory duct is compressed, it can lead to obstruction of the seminal tract and cause infertility in men. The actual Prostate Cyst: The prostate gland size does not change significantly or not much, the envelope is clear and intact, symmetrical to the left and right; the prostate gland is seen as an echogenic area, which can be located inside the prostate gland or under the prostate envelope.