Prostatectomy – side effects of the surgical removal of the prostate gland, including infertility, impotence and incontinence. Problems with the testicles – caused by injury, infection or chemotherapy. Ejaculation problems – retrograde (when semen enters the bladder instead of emerging through the penis) and premature ejaculation. Impotence – the inability to get or maintain an erection sufficient for sexual intercourse. Sperm with poor motility may swim feebly or not at all.įunctional problems causing infertility in menįunctional problems that can cause or contribute to male infertility include: Poor motility – a healthy sperm has a lashing tail which helps it to swim through the woman’s reproductive system. Abnormally shaped sperm may have problems penetrating the surface of the woman’s egg. Abnormal shape – a healthy sperm is shaped like a streamlined tadpole. Low sperm count (oligospermia) – the ejaculate has insufficient sperm to bring about conception. This may be caused by a blockage of the tubes or the testicles not producing sperm. Absent sperm (azoospermia) – the semen doesn’t contain any sperm. Tiny fragments of the male chromosome may be missing in some men with sperm problems. Problems with sperm numbers or quality are thought to be caused by genetic factors. Problems with sperm causing infertility in men Blockages or absences of tubes may be due to vasectomy or injury. Blockages or absences of tubes (including the vas deferens) are the cause of around one in 3 cases of male infertility. The vas deferens empties the sperm into the ejaculatory duct, where they are mixed with seminal fluid from the seminal vesicles and the prostate gland.ĭuring ejaculation, muscular contractions force the semen into the urethra and out of the penis. 3 ways to increase seminal fluid series#
Sperm are made in the testicles, then they spend 2 to 10 days passing through a series of small tubes called the epididymis where they mature and exit into a larger tube called the vas deferens. functional problems (such as impotence).problems with sperm (such as low sperm count).The major causes of male infertility are: Read more on Weight and reproductive outcomes External Link, and Effects of caffeine, alcohol and smoking on reproductive outcomes External Link on the Your Fertility website. This is called ‘unexplained’ or ‘idiopathic’ infertility. No cause is found in around one in 10 couples investigated for infertility. Another 30% originate in the man and 30% are found in both partners. In most cases, the couple can be helped with assisted reproductive technologies (ART).Īround 30% of fertility problems in couples originate in the woman. Fertility difficultiesĪpproximately 15% of couples experience fertility difficulties. A couple isn’t suspected of having fertility problems until they have tried unsuccessfully to conceive for one year.
The chance of a young fertile couple conceiving is approximately one in 5 every month. Around 20 million sperm per millilitre (ml) need to be present in the ejaculate, with enough mobility and strength to swim the journey to the fallopian tube where conception takes place. New life begins when an egg from a woman is fertilised by sperm from a man.
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