Patient's question:
I want to know what the normal color is after ejaculation? Is yellow normal? I've been masturbating since I was 12, but back then I didn't know what it was, I just found it comfortable. Now I'm 19 and noticed it's yellow—is that normal? Does it have anything to do with when I was a child? First question supplement: Should answerers read the question carefully before answering!!!!!!Doctor's answer:
The normal volume of semen ejected during sexual intercourse or masturbation in a male is 3-5 milliliters. Semen is grayish-white, weakly alkaline, and has a special fishy odor, which is mainly the smell of prostatic fluid. Of which, seminal plasma accounts for more than 95%, and sperm accounts for less than 1%. Each cubic centimeter of testicular tissue can produce 2 million sperm daily, meaning that each male's testicles can produce tens of millions to billions of sperm daily. Even if these sperm are not expelled from the body, they will age, die, and eventually be digested by enzymes.Seminal plasma is composed of secretions from the supporting cells of the seminiferous tubules, epididymis, prostate, seminal vesicles, bulbourethral glands, and paraurethral glands. The secretion of the seminal vesicles and prostate accounts for approximately 65% and 30% of the total volume, respectively. Seminal plasma mainly provides a medium for transporting and nourishing sperm, as well as stimulating the motility of sperm.
Semen consists of sperm and seminal plasma. Let's further analyze the composition of seminal plasma, which is mainly water, accounting for more than 90%. Other components include fat, protein granules, pigment granules, lipid bodies, amines (including choline, spermine, and spermidine), free amino acids (the content varies greatly, with the total amount of amino acids in normal semen reaching 1.25 grams/100 milliliters within 4-6 hours after ejaculation), inorganic salts (including calcium 25 mg/dL, magnesium 14 mg/dL, potassium 89 mg/dL, and zinc 14 mg/dL), enzymes (mainly containing acid phosphatase, lactate dehydrogenase, and hyaluronidase), and carbohydrates (mainly fructose 224 mg/100 milliliters). These