How much can a man ejaculate at one time? How much is considered normal?

Semen is a grayish-white liquid, mainly composed of secretions from the testicles, epididymis, prostate and seminal vesicles, as well as a small amount of secretions from the urethral glands. How much semen is normal for a man to ejaculate at one time?

Semen composition

Sperm is the most important formed component in semen, accounting for 5-10%. Sperm is gradually developed from spermatogonia in the testicles, and the entire development cycle takes about 74 days. An adult male can produce about 100 million sperm every day. Changes in physical condition and external stimuli (such as radiation, temperature), etc., can only change the quality of sperm, but cannot change its development cycle.

The liquid component is called seminal plasma, which is the medium necessary for transporting sperm. Seminal vesicle secretion fluid accounts for 60%-70%, and prostatic fluid accounts for 20%-30%.

Semen volume

Only with a certain amount of semen can a certain number of sperm be guaranteed. The normal reference value of semen volume is 2-6mL each time, with an average of 3.5mL. Clinical significance: Decrease (<1.5mL) is seen in ejaculatory duct obstruction, congenital seminal vesicle defects, reproductive tract infectious diseases, etc. In addition, pituitary or testicular interstitial lesions can also cause it. Increase (>81nL) is seen in long abstinence time or accessory hypergonadism, etc.

Semen volume is often related to ejaculation frequency. Self-assessment of this volume has a large error. If the semen volume is too low for a long time, it may cause difficulty in conception. Excessive semen volume will reduce sperm density, which may be related to long-term abstinence or hypergonadism.