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Hematospermia (also known as haematospermia, hemospermia, or haemospermia) is the presence of blood in the ejaculate. It is most often a benign symptom. [1] Among men age 40 or older, hematospermia is a slight predictor of cancer, typically prostate cancer. [2] No specific cause is found in up to 70% of cases. [3]
Its secretion forms up to 30% of the semen. Semen is the fluid emitted by males during the sexual response. [19] When sperm are emitted, they are transmitted from the vas deferens into the male urethra via the ejaculatory duct, which lies within the prostate gland. [19] Ejaculation is the expulsion of semen from the urethra. [19]
A urine specimen may be collected, and is likely to demonstrate blood within the urine. [9] Laboratory examination of seminal vesicle fluid requires a semen sample, e.g. for semen culture or semen analysis. Fructose levels provide a measure of seminal vesicle function and, if absent, bilateral agenesis or obstruction is suspected. [13]
Semen displacement is an adaptation of the shape of the penis to draw foreign semen away from the cervix. This means that in the event of a rival male's sperm occupying the reproductive tract of a female, the human penis is able to displace the rival sperm, replacing it with his own. [42] Semen displacement has two main benefits for a male.
ABP is essential to concentrating testosterone in levels high enough to initiate and maintain spermatogenesis. Intratesticular testosterone levels are 20–100 or 50–200 times higher than the concentration found in blood, although there is variation over a 5- to 10-fold range amongst healthy men.
Increasing age, with the highest risk after ages 45 in men and 55 in women Being assigned male at birth Family history, especially having a genetic disorder called familial hypercholesterolemia
Sperm quantity and quality are the main parameters in semen quality, which is a measure of the ability of semen to accomplish fertilization. Thus, in humans, it is a measure of fertility in a man . The genetic quality of sperm, as well as its volume and motility, all typically decrease with age . [ 17 ]
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