Sometimes the white is not prostate fluid – urethral bulbous fluid, how much do you know? Don’t be nervous, sometimes the white fluid secreted from the urethra is not necessarily prostate fluid, but urethral bulbous gland fluid. The urethral bulb glands are a pair of pea-sized spherical organs located in the deep transverse muscle of the perineum. The excretory ducts of the glands are elongated and open at the bulb of the urethra. The urethral bulb gland, also known as the Cooper’s gland, is a gland that opens in the urethra in most male mammals. 1 pair of glands are formed by the differentiation of the urethral glands, and their secretion is a colorless and transparent mucus, which is one of the components of semen. The main function is to secrete a small amount of mucin mucus that is transparent and slightly off-white, the secretion is thick and can be stretched into silk, which has the effect of lubricating the urethra, and its composition contains proteases, sialic acid and amino sugars. When sexual excitement and penile erection, the fluid secreted by the urethral bulb gland can enter the urethra and form the initial part of the ejaculated semen, which is also one of the components of the seminal plasma, but only accounts for a very small part of the ejaculated semen volume. The secretion of the urethral bulb gland can play a role in lubricating the urethra and the head of the penis during sexual intercourse. It can be seen that the fluid secreted by the urethral bulb gland has the following functions: 1. lubricating the vulva before vaginal insertion to facilitate penetration; 2. lubricating the urethra before ejaculation; 3. forming a protective film of mucus on the surface of the projectile-like semen during ejaculation, which protects the sperm from the unfavorable environment of the vagina; 4. after ejaculation, the urethral bulb gland fluid on the surface of the projectile-like semen quickly forms a strong bond with the cervical mucus, which may be one of the reasons why the semen does not This may be one of the reasons why semen does not flow out of the vagina soon after ejaculation; 5. After the semen is liquefied, the active spermatozoa are guided by the fibrous filaments of the urethral bulb gland fluid and cervical mucus to reach the cervical canal, and the spermatozoa do not lose their direction because they are bound and guided by the urethral bulb gland fluid.