How are small prostate stones caused

Patient's question:

How are small prostate stones caused

Doctor's answer:

The reasons for stones forming in the prostate are not entirely clear, and medical experts have the following views. One theory suggests that prostate stones grow gradually around an organic core, like a snowball rolling. The organic core is often a blood clot, bacteria, necrotic tissue, or a substance called "amyloid." Amyloid is a small, circular or elliptical, radiating structure formed by the encasement of shed epithelial cells with fat, nucleoproteins, crystal uric acid, cholesterol, and other substances. When urine flows through the urethra, it can reflux from the prostatic duct openings to the distal prostatic ducts. Calcium salt crystals in the urine can deposit layer by layer on the organic core, gradually increasing in size to form stones.
Another theory proposes that stones form due to chronic inflammation in the prostate glandular acini and excretory ducts, causing acinar dilation and duct narrowing. After urine refluxes, certain salts deposit on the normal prostate glandular tissue, forming prostate stones.
A third theory suggests that prostate hyperplasia increases pressure within the prostatic ducts, leading to the accumulation of secretions in the ducts. Under pressure, salt components deposit on the compressed cortical tissue or the surgical capsule surrounding the prostate, thus forming prostate stones.