1, color: normally grayish white, light yellow, milky white or greenish when not ejaculating for a long time, found in reproductive tract or accessory gonads; Semen redness (hemospermia) is found in seminal vesiculitis, cancer, tuberculosis, etc.
2. Sperm quantity: normal people ejaculate 2 ~ 5m 1 at a time, if it is less than 1m 1, it is abnormal. Every time sperm is discharged (0.5ml is azoospermia, if there is no semen, it is azoospermia. Azoospermia and azoospermia are the main causes of male infertility. Can be seen in prostate or seminal vesicle lesions, congenital ureteral occlusion or inflammatory stenosis, or retrograde nocturnal emission.
3.pH value: usually weakly alkaline. If the pH value is between 7.7 and 8.5, the semen is too acidic or alkaline, which may affect the activity and metabolism of sperm and is the main cause of sperm death (azoospermia).
4. Smell: Normal semen has a special fishy smell, which is emitted by prostatic fluid. This fishy smell comes from a component of prostatic fluid.
5. Sperm count: Men with normal fertility contain 0.6 ~/kloc-0.5 billion sperm per milliliter, sometimes up to 200 million. The total number of sperm discharged at a time is about 300 million, but the content of sperm varies from person to person, even if the same person is at different times. Therefore, the diagnostic value of calculating the total number of sperm discharged each time is greater than that of checking the number of sperm alone. Too high sperm density (more than 250 million per milliliter) is called oligozoospermia, which often affects sperm activity. Even if pregnant, it is easy to miscarry, mainly because the quality of sperm itself is not high.
6. Viscosity: Normal fresh semen is a liquid, which quickly turns into a viscous peptone-like semi-fluid after being discharged, and then turns into a liquid after 5-30 minutes. If it does not liquefy for 30 minutes, it is abnormal, which can be seen in the lack or insufficiency of some enzymes secreted by the prostate, tuberculosis of the reproductive system and fertility.