Sperm liquefaction time is normally <60 minutes, 45 minutes is normal, if there is no other abnormality as well as no abnormality in women can get pregnant. In healthy men, semen will solidify into a jelly-like consistency soon after it is discharged, and the sperm liquefaction time refers to the time it takes for the semen to change from a jelly-like consistency to a fluid-like consistency. Normal semen liquefaction time is <60 minutes. Therefore, a male sperm liquefaction time of 45 minutes falls within the normal reference value, and if there is no other abnormality and the woman is normal, she can get pregnant. Pregnancy is not only related to sperm liquefaction time, but also semen viscosity, activity rate, motility and other indicators are normal to get pregnant; and pregnancy is related to both men and women, women also need to meet the physical requirements for pregnancy. It is recommended that both men and women undergo relevant examinations before preparing for pregnancy, so as to achieve eugenics. When the sperm liquefaction time is abnormal, the cause should be clarified under the guidance of the doctor, so as to actively treat.