2. A colloidal semi-fluid just discharged, the semen is viscous, milky white, contains gray clots or forms a gel. After about 10-20 minutes, the clot will liquefy itself and become translucent, turbid and thin mucus.
3. The semen of normal people is grayish white or yellowish. If abstinence lasts for a long time, the color will turn yellow because of the changes in physical and chemical properties. This is normal.
4. Semen abnormalities include: the semen is milky white or slightly yellowish green, indicating that there is inflammation in the reproductive tract, which is likely to be purulent infection of the prostate and seminal vesicle. Semen is red, indicating that it contains red blood cells, which is commonly called "blood essence". Blood essence is mostly caused by seminal vesiculitis or prostatitis. This kind of blood essence caused by inflammation is mostly reddish. If the small blood vessels are ruptured due to vascular malformation, the blood essence is bright red and blood clots can be seen.