Sperm viability is usually normal with 70% or more viable sperm within one hour of sperm discharge. Sperm motility refers to the ability of sperm to move, which usually determines male fertility. Under normal circumstances, it is normal to have 70% or more viable sperm within one hour after sperm expulsion; if it is less than 50%, it is abnormal, which indicates that his sperm vitality is low. Sperm viability can be categorized into four grades: Grade A spermatozoa move forward quickly and in a straight line; Grade B spermatozoa move forward slowly or sluggishly; Grade C spermatozoa move in place; and Grade D spermatozoa are inactive. Normally, A-grade sperm should be more than or equal to 25% or the sum of A-grade and B-grade sperm should not be less than 50%. Before doing semen routine to check sperm vitality, it is best to abstain from sex for a week, and avoid radioactive tests, and keep no smoking, no alcohol, no late night, etc., so as not to affect the test results. If the patient has abnormal sperm vitality, it is recommended to go to the hospital in a timely manner, after clarifying the cause of the disease, to carry out targeted treatment, so as not to cause adverse consequences.