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It may seem cheaper and easier than having treatment at a clinic, but there are some important issues to consider. Find out more about home insemination, the risks and how to protect you and your family. Clinics in the UK are required by law to ensure that donors, patients and any future children are protected by carrying out rigorous health tests and offering everyone involved counselling.

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Researchers have found that sperm retains its viability in microgravity, opening up the possibility of creating space sperm banks. A new preliminary study has found that microgravity appears to have little or no effect on the viability of human sperm. This is not only interesting but also shows that it should be possible to transport and store male gametes in space.

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It's also used to store sperm so it can be used in someone else's treatment. Find out more about what sperm freezing involves and how long you can store your sperm for. Donated sperm usually has to be quarantined for three or six months and screened for infections before it can be used by a recipient.

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Study record managers: refer to the Data Element Definitions if submitting registration or results information. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below.

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Background: Cryptozoospermia CO is a situation in which spermatozoa cannot be observed in a fresh semen sample unless an extended centrifugation and microscopic search are performed. CO patients are suggested to use only intracytoplasmic sperm injection ICSI as infertility treatment. But still there is debate about the choice of sperm source in cryptozoospermic men candidate for ICSI.

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Researchers presented the results today at the annual scientific meeting of the American Urological Association in San Francisco. In vitro fertilization starts with a woman taking fertility drugs to stimulate her ovaries to produce more eggs than usual. When the eggs are mature, they are retrieved from the ovary and introduced to washed sperm to allow fertilization.

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Sperm donation is the provision or "donation" by a man known as a sperm donor of his sperm known as donor spermprincipally for it to be used in the artificial insemination of a woman or women who are not his sexual partners for the purpose of achieving a pregnancy. Sperm may be donated publicly and directly to the intended donor, or through a sperm bank or fertility clinic. Sperm donation enables a man to father a child for third-party women, and is therefore, categorized as a form of third party reproduction.

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You produce sperm every day, but a full sperm regeneration cycle spermatogenesis takes about 64 days. Spermatogenesis is the complete cycle of sperm production and maturation. Read on to learn more about how often your body replenishes your sperm, what happens in your body to make sperm production possible, how you can help keep your sperm healthy, and more. Your testicles are constantly producing new sperm in spermatogenesis.

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Would you struggle to fill half a teaspoon? And your concentration, please: are we talking 20m-plus little swimmers a millilitre? A wave of tech startups, such as ExSeedYoTrak and Legacyare offering next-generation home sperm-testing technology and — in some cases — sperm-freezing services.

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