Seminal emission Seminal emission is the phenomenon of human ejaculation without sexual activity, which occurs mostly in sleep and is also called dream emission. Seminal emission is an important sign of male adolescent development, from adolescence to adulthood and sexual maturity. The fact that about 80% of men have seminal emission since puberty until marriage, it can be said that seminal emission is a common physiological phenomenon in men after puberty. The amount of semen excreted by adult men is about 3-5ml each time, of which more than 95% is seminal plasma, and the main component of seminal plasma is water. Normal men, if healthy, normal diet, adequate nutrition, generally 2-3 days after an ejaculation can be replenished seminal plasma, but the recovery of spermatozoa need longer time, because, a spermatogonial cell after several divisions evolution, the final development of mature sperm need about 80 days, if frequent sperm, may appear temporary reduction in the number of sperm, but after a spermatogenic cycle The sperm count may return to the normal range. Hemosperm The normal semen is milky white or yellowish, but if the semen contains red cells, pink, red, brownish red or with blood, it is called hemosperm. The most common cause of hematosperm is vesiculitis. The seminal vesicles are located above the prostate gland, between the bladder and rectum, and the end converges with the end of the vas deferens to form the ejaculatory duct leading to the urethra, and the seminal vesicles secrete fluid to participate in the composition of seminal fluid. The seminal vesicles are adjacent to the prostate gland, urinary tract, rectum and other organs, so when there is inflammation in these organs, bacteria can easily spread to the seminal vesicles causing inflammation, or inflammation in adjacent tissues causing the seminal vesicle wall to become congested and capillaries to leak blood. Because there is a tiny vascular layer in the wall of seminal vesicles, which contains many microvessels, it is easy to be injured and cause bleeding. Therefore, many factors can cause the problem of hematospermia. In addition to hematemesis during sexual intercourse, it can also be accompanied by mild perineal discomfort or painful ejaculation, and most people have no symptoms until they discover hematemesis. Sometimes the symptoms can recur many times and extend for years. The actual fact is that chronic vesiculitis does not have a great impact on the human urogenital organs and functions, so vesiculitis patients do not need to have too much mental burden and psychological pressure, to enhance physical fitness, and then supplemented by appropriate medication vesiculitis can be recovered. In case of hemorrhagic semen, a semen test should be performed and the diagnosis can be established when a large number of red blood cells are seen under the microscope, and treatment should be given according to vesiculitis, with appropriate oral antimicrobials.