1.Will sperm donation affect my health? Sperm is a reproductive cell, produced a dozen to twenty days later will naturally go to aging death, while every day there are new sperm replenishment. Sperm donation is the removal of semen through masturbation. For men between the ages of 22-45, sperm donation 2-3 times a week does not affect health. Semen donation is a humanitarian act that plays an important role in the enjoyment of reproductive health for all, and blood donation, blood stem cell donation, is an element of public welfare, should be supported and praised by the whole society. 2.Why should I abstain from sex for 3-7 days before donating sperm? Abstinence time has a greater impact on semen quality, too long or too short will affect semen quality, in order to ensure the quality of your semen, it is best to abstain from sex for 3-7 days. 3. Does a failed screening test mean unhealthy or abnormal fertility? The Ministry of Health sperm bank technical specifications are very strict in the screening of sperm donors, and the requirements for semen routine are higher than the standards used in general clinical practice. Therefore, a failed screening does not necessarily mean that the patient is unhealthy or has abnormal fertility. 4. Does masturbation and sperm discharge affect my body? Moderate masturbation has no physiological effects on the body and is not harmful to health. The negative psychological effects are often due to misconceptions about masturbation. 5.Why should I have my blood drawn and retested after six months? Some viral infections are followed by a window period in which the infection has been acquired but no antibodies can be detected, so screening standards must be strictly enforced. All specimens are stored for a quarantine period of 180 days, and the frozen semen of the sperm donor can be used clinically only after the repeat blood test has been passed.