Whether you want to try to conceive naturally or you want to conceive a healthy baby with the help of a fertility treatment, you need to have healthy sperm first. So, how can we determine the quality of sperm? Look at the color Normal semen is milky white or off-white, or yellowish if you have been abstinent for a long time. If the semen is pink or red, it may have tuberculosis, tumor or urethral inflammation, which requires prompt consultation to find the cause. The normal volume of sperm discharge is 1.5-7 ml. If it is less than 1 ml, it will cause infertility due to the small contact area between the semen and the female reproductive tract; if there is an excess of 7 ml, it will lead to a decrease in the number of sperm, a decrease in sperm density and an easy outflow from the female reproductive tract, which will affect the conception process. The normal sperm density is 15×106/ml or more, below this value is oligospermia. If it is higher than 50×106/ml, the sperm count is too high and will affect conception due to poor motility. The normal semen is jelly-like when it is first ejaculated and will liquefy automatically after 30 minutes, turning into translucent, cloudy and thin mucus. If the semen appears to be “rice soup” after ejaculation, it indicates that there may be inflammation in the male reproductive system. The same goes for the delayed liquefaction of semen, which may indicate the presence of prostatitis. The pH of normal semen is 7.2-7.8. If the pH is too high or too low, the quality of sperm will be affected. Look for white blood cells The density of white blood cells in semen should be less than 1×106/ml. An increase in white blood cells indicates the presence of infection in the reproductive tract or paraphilic gonads. Look at motility The motility of sperm can generally be classified into four grades according to their motility: Grade A is excellent motility with fast straight forward movement; Grade B is straight forward movement; Grade C is forward curved movement; Grade D is creeping in place. Normal fertilization of the egg is possible when the percentage of sperm in grades A and B reaches 32%. Look at the survival rate Within one hour after ejaculation, if the percentage of sperm with motility can still be maintained at 58% or more, it means that the sperm quality is good.