Men who cannot develop sperm

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Men who are diagnosed as azoospermic -- infertile because of an absence of sperm in their ejaculate -- are more prone to developing cancer than the general population, a study led by a Stanford University School of Medicine urologist has found. And a diagnosis of azoospermia before age 30 carries an eight-fold cancer risk, the study says. Eisenberg is lead author of the study, published online June 20 in Fertility and Sterility. Diagnoses of male infertility and azoospermia are surprisingly common in the United States. About 4 million American men -- 15 percent of those ages -- are infertile. Of these, some , -- about 1 percent of those of reproductive age -- are azoospermic.
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Azoospermia

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Azoospermia | Johns Hopkins Medicine

Infertility is defined clinically in women and men who cannot achieve pregnancy after 1 year of having intercourse without using birth control, and in women who have two or more failed pregnancies. Many different medical conditions and other factors can contribute to fertility problems, and an individual case may have a single cause, several causes, or—in some cases—no identifiable cause. Overall, one-third of infertility cases are caused by male reproductive issues, one-third by female reproductive issues, and one-third by both male and female reproductive issues or by unknown factors. To conceive a child, a man's sperm must combine with a woman's egg. The testicles make and store sperm, which are ejaculated by the penis to deliver sperm to the female reproductive tract during sexual intercourse. The most common issues that lead to infertility in men are problems that affect how the testicles work.
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No Sperm / Azoospermia

When a semen analysis shows no sperm count azoospermia or very low levels of sperm cryptospermia , it does not necessarily eliminate the possibility of a couple conceiving. New and exciting interventions may either help the man produce sperm or locate small numbers of sperm, not found on a regular semen analysis. Fortunately, a standard semen analysis that shows the absence of sperm in the ejaculate does not rule out the possibility that:. The first step after receiving the diagnosis of azoospermia is an evaluation with a urologist specializing in male infertility to determine whether the cause is due to a problem with sperm production or sperm delivery. Sperm production problems may be caused by a hormone imbalance, varicocele or testicular failure.
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Learn more. Azoospermia is the medical term used when there are no sperm in the ejaculate. Around 10 percent of infertile men and 1 percent of all men have azoospermia. Imagine a stadium with 50, men attending a game — around 5, to 7, of those men will have infertility, and of those men will be azoospermic! Perhaps the most obvious cause would be a vasectomy, which prevents sperm from joining other fluids in the ejaculate.
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