Zinc is an indicator of prostate function and is associated with resistance to bacterial infection. Pathogenic microbial infection can cause prostatitis, often manifested as delayed semen liquefaction and reduced seminal plasma zinc content; 2. Zinc is an important component of superoxide dismutase (SOD), which can scavenge free radicals in seminal plasma, thereby inhibiting lipid peroxidation in cell membranes and ensuring that the morphological structure and function of spermatozoa are not damaged.