Normal semen standard
The Standard of the World Health Organization stipulates that the standard of normal semen is:
First, the amount of semen is 2 to 6 ml of semen. If the amount of semen is greater than 6 ml, it is considered to be too much semen.The amount of sperm is less than 1.0 ml, and it is considered that the amount of semen is too small.The amount of semen is related to the length of abstinence.For abstinence, the amount of semen is more, otherwise less.Therefore, usually when we do semen examination, we will be told that the disease must be separated from the interval between 4 to 5 days and then take the semen, so that the results of the examination are relatively accurate.
Second, the semen's sperm just shot is jelly -like, gray -white or grayish yellow.When semen liquefies, it is translucent milky white or milky yellow.For a long time, the semen has a deeper color.The semen of the elderly is mostly dark yellow.
Third, the smell of semen has a special smell of sperm. Some people are compared to chestnut flower flavor, and some people describe the flavor of poppy.This odor is due to the oxidation of the prostate fluid.The longer the ascetic time, the greater the smell.
Fourth, the liquefaction of semen liquefaction time semen is the process of changing from jelly -like to liquid -like after the semen is ejected.Normal semen liquefaction time is 30 minutes.If it is more than 30 minutes, it is not liquefied or liquefied in the semen.
V. Semen viscosity The liquefied liquefied is a sticky liquid shape, and the sperm is adhered to the sperm naturally down. If the semen is discontinuous, dripping a drop, the viscosity is normal.If there is a longer (2 cm) mucus shred, it is too much viscosity.Semen does not liquefy, liquefaction incompleteness, or excessive viscosity, which will affect the movement of sperm and cause infertility.
6. The pH value of the sperm and alkali of the semen is 7.2 to 8.0, and the less than 7.2 or greater than 8.0 is abnormal.It is worth noting that the semen should be checked immediately after liquefaction. The specimen is too long, which will affect the result of the pH value of the semen.
Seven, the sperm count of sperm counting normal fertility is 20 million/ml.After many inspection of the sperm, the sperm is less than 20 million/ml, it is a young sperm disease.The sperm number is greater than 250 million/ml, which is multi -sperm.Excessive sperm count or too little can affect fertility.
8. Sperm activity rate Sperm activity refers to the sperm ratio surviving in semen.Normal sperm activity & ge; 75%.
Nine, sperm activity Sperm activity refers to the ability of sperm activity. Usually divide the sperm activity into five levels: Class A, sperm straight line movement quickly; level B, sperm slowly move forward; C -level, no definitive directionSports; D -level, sperm movement; E -level, sperm, motionless.The activity of normal sperm should be, within 60 minutes of ejaculation, A -level+B -level & GE; 50%, or A -level & Ge; 25%.
X. Sperm of the sperm morphology "Sperm" is 50%, and the deformity sperm does not exceed 40%.If this criterion is more deformed sperm, it is one of the causes of male infertility.
11. The number of white blood cells in the normal semen in the semen "1 × 106/ml, that is, the number of white blood cells per high visual field of view should be less than 10.If more than 20 of them should be considered as pustular.
(Editor in charge: Xiaofeng)
