A sperm test is precisely a routine semen examination. The general abstinence time for sperm testing is between 3 and 7 days. During this time, normal sexual activity, including masturbation, should not be practiced, and the presence of seminal emission should also delay the test. This is mainly due to the complexity of the test and the biological characteristics of sperm itself. A routine semen examination is performed to check whether the chemical characteristics of the semen fluid composition are up to standard and to check the quality of the sperm itself. There are many components involved. Early or late examination can lead to some changes in the composition of these fluids. The fluid composition of semen consists mainly of prostatic fluid, seminal vesicle gland secretion and some other urogenital tract fluids. These fluids may become inflammatory if they are kept in the body for too long, producing some chemical irritants that can lead to adverse stimulation of the fluid composition itself and the sperm. Inaccurate test results may occur. Sperm are stored in the epididymis, and the site of sperm production is the testes. There is a distance in the sperm from the testes to the epididymis and it takes a while for the sperm to be transported. If this 3-7 day period is not reached before the test, it is possible that the sperm produced has not yet reached the epididymis. The problem of a substandard sperm count can occur when the test is performed. When the optimal examination time is exceeded for too long, the sperm have a limited life span and the sperm stored in the epididymis may lose their proper biological activity, and when the examination is performed, problems such as high number of dead sperm, high number of deformed sperm, and poor sperm motility may occur. It is scientifically justified for men to have a semen test with a special abstinence time requirement. Before this test, you should follow the doctor’s instructions and prepare well for the test.