Difference between bulbourethral fluid and prostatic fluid

Both the urethral gland fluid and semen are fluids secreted by men. The urethral gland fluid is a concentrated fluid that is weakly alkaline and may contain a small amount of sperm. Semen, as a secretion of the male prostate, also contains a small amount of sperm. Although it is difficult for the urethral gland fluid and semen to cause pregnancy, it is best to use relevant contraceptive methods to prevent pregnancy 100%.

When the male penis is stimulated and excited, the transparent, colorless, viscous liquid is discharged from the urethra. It is metabolized by the male's bulbourethral glands and is weakly alkaline. It is also called pre-ejaculation fluid. Bulbourethral gland fluid often contains a small amount of sperm, so some contraceptive methods that do not use condoms (such as extracorporeal ejaculation) cannot completely achieve the actual effect of contraception. Bulbourethral gland fluid is mainly produced by the metabolism of the bulbourethral glands. The daily secretion volume of adult men is about 0.5 to 2 ml, and most of it is usually excreted from the body with urine. The acid-base environment is harmful to semen. The bulbourethral gland fluid will remove the acid-base environment remaining in the urethra in the urine, allowing semen to be produced in a more beneficial environment.

Causes of bulbourethral gland fluid

During sexual intercourse, the glandular fluid acts as a lubricant to neutralize the residual acidity and alkalinity caused by urine. The glandular fluid often contains a small amount of male sperm, so some contraceptive methods that do not use condoms (such as ejaculation outside the body) cannot completely achieve the actual effect of contraceptive measures.

Some men are troubled by the excessive amount of pre-ejaculation. A doctor described the dilemma of some people: "When kissing or touching mild erotic stimulation, it is easy to make jeans wet." When these people used 5-alpha-reductase inhibitor, some individual surveys reported relatively satisfactory results.

Semen is a secretion of the male prostate. The metabolism of semen is controlled by androgens, and the daily secretion volume is about 0.5 to 2 ml. It is a key component of semen and one of the seminal plasma components in semen, accounting for about 1/10 to 1/3 of the density of ejaculated sperm. 1/6 is about 0.5 ml. In the sequence of male ejaculation, semen is one of the flow components of semen. The protein content in semen is very small, and it mainly contains high concentrations of zinc ions, acid phosphatase, protein hydrolase, chemofibroblast, spermine, aliphatic active polypeptides, etc. Among them, protein hydrolase and chemofibroblast have the effect of promoting sperm liquefaction. Testing acid phosphatase and sodium citrate can help distinguish prostate function and whether there is lesion.