High Fpsa may be caused by tumors such as prostate cancer. However, urinary tract infection, masturbation, ejaculation, insertion of catheter, cystoscopy, etc. can also lead to high Fpsa. Elevated Fpsa value alone cannot confirm the diagnosis of the disease, therefore, it is recommended to go to the hospital for a review of the specific case, to clarify the cause of the disease and then carry out targeted treatment. Fpsa is the free prostate-specific antigen, the normal range of values in the 0-1ng / ml. It should be noted that the simple elevated Fpsa value can not effectively determine the source of the cause of the disease, need to be combined with the fpsa / tpsa (total prostate-specific antigen) for diagnosis. Normal Tpsa levels are 0-4 ng/ml, and when Tpsa is greater than 4 ng/ml, the smaller the Fpsa/Tpsa value, the higher the risk of prostate cancer. However, it is also important to note that urinary tract infections, ejaculation, catheter insertion, and cystoscopy may also lead to the development of high Fpsa values. There are many factors that can cause high Fpsa, and it is recommended that you go to the hospital for a review and diagnosis through a comprehensive examination to avoid the adverse consequences of a miscarriage of justice.