Prostate calcification is one of the common prostate lesions in men, mostly occurring in the 40-60 age group. The so-called calcification, which pathologically refers to the deposition of calcium salts in the local tissue, can be a normal physiological process or can be seen in certain pathological conditions. Because of the lack of typical clinical symptoms and signs, prostate calcification is mostly detected by imaging during the examination of prostate disease and other diseases of the urinary system. In imaging, prostate calcification appears as strong echogenic foci or high-density foci in the prostate. With the popularization and improvement of ultrasound technology, the detection rate of prostate calcification has increased significantly. The calcification of the prostate should be distinguished from prostate stones. The actual calcification of the prostate gland is a real stone that forms in the prostate ducts and in the prostate alveoli of the patient. These stones are as small as a grain of rice and can be round or oval in shape with a hard texture. However, current medical imaging techniques are difficult to distinguish between calcified foci in the prostate alveoli or ducts (true stones) and in the stroma (pseudoliths). Therefore, most scholars now agree that strong echogenic foci or high-density foci in the prostate are collectively referred to as prostatic calcification in imaging. Etiology: When dilatation of the prostatic ducts and alveoli occurs for a variety of reasons or when prostatic fluid accumulates, it can cause the shedding of epithelial cells to gather with amyloid vesicles (prostatic coagulum) and secretions in the cystic cavity, which can form calcifications if there are gradual deposits of calcium salts. The chemical prostatitis due to urinary reflux is more likely to cause calcification formation. The cause of calcification of the prostate is still unclear and may be related to degenerative changes in the prostate tissue, chronic prostatitis, retention of prostate fluid, frequent congestion of the prostate, narrowing of the prostate duct, disorders of calcium and phosphorus metabolism and psychosocial factors. It is generally believed that age 40 is closely associated with prostate enlargement. Existing studies suggest that the presence of nano-bacterial infection in the prostate may lead to the development of prostatic calcification, and that prostatic calcification may contribute to the difficulty of treatment and ease of recurrence of prostatitis. However, the exact relationship between the three needs to be confirmed by further relevant studies.