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Sperm harvesting is entirely different from a diagnostic testicular biopsy because, in this setting, the goal is not to identify what is happening in the testis but instead it is to find sperm. Only men with no sperm in their ejaculate azoospermia need to have sperm retrieved directly from the testis or epididymis. This may involve a simple aspiration for men who have a blockage or require much more extensive sampling of the testis for men who have a sperm production problem. As a result, there is a significant difference in the amount of time it takes, the need for anesthesia and the equipment utilized. Very few tests allow for an accurate prediction of whether or not sperm will be found in the testes of men with testicular problems. Genetic testing may give insight into the chance of finding sperm but are not absolute.
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What You Should Know About Hyperspermia

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Hyperspermia: Symptoms, Causes, Fertility, and More

Sperm gets ejected from the penis, enters the vagina, and swims up the reproductive tract until they reach the egg to fertilize it. Barely years ago, it was considered a major scientific breakthrough when scientists came up with the idea that a fully formed, tiny human inhabited the head of each sperm — totally debunked and untrue. Fortunately, as the human body has evolved over thousands of years to maximize fertility potential, so has our scientific understanding about sperm. But many of us still believe some pretty unscientific, long-standing sperm myths.
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Some die within minutes, and some can live anywhere up to seven days, under perfect conditions. But most live about two or three days inside the female reproductive system, according to USC Fertility. You need just one sperm to make it to the right place — the correct fallopian tube — at the correct time — after ovulation — to create a new life. This makes it seem like pregnancy could occur very easily.
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A six-month study among previously sedentary men in Iran found that those who were randomly assigned to start exercising on a treadmill improved the quality of their sperm in terms of volume, sperm count, motility and morphology shape and size. All the men in the study were assigned to do either moderate intensity continuous training running at moderate speed for 30 to 45 minutes, three to six days a week , high-intensity continuous exercise running vigorously for one hour on the treadmill, three days a week , high intensity interval training alternating minutes of sprints and walks for 20 to 30 minutes or no exercise at all. All exercising groups significantly decreased their weight, body fat percentage and waist circumference. The moderate intensity group improved their semen volume by more than eight percent. Their sperm motility was 12 percent higher, morphology improved 17 percent and they had 22 percent more sperm cells on average compared to the control group, which did no exercise.
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