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Page: Reversal
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Although men considering vasectomies should not think of them as reversible, and most men and their spouses are satisfied with the operation, there is a procedure to reverse vasectomies using vasovasostomy (a form of microsurgery). It is, however, not effective in all cases, with the success rate depending on such factors as the method used for the vasectomy and the length of time that has passed since the vasectomy was performed. There is evidence that men who have had a vasectomy produce abnormal sperm, which would explain why even a mechanically successful reversal does not always restore fertility.
In one study, vasectomy reversal was found to be 75% effective for reducing the symptoms of chronic post-vasectomy pain.
In order to allow a possibility of reproduction (via artificial insemination) after vasectomy, some men opt for cryostorage of sperm before sterilization, and although the long term viability of spermatozoa in cryostorage is questionable, some experts advise that this be done before vasectomy.
Various temporary male contraceptives are being researched but not yet available, such as male hormonal contraceptives and the intra vas device. There has been at least one documented case of a vasectomy being reversed on a dog, which then fathered puppies after the reversal.
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