Human sperm tail abnormalities

Tutor A. It is therefore unreasonable to hope for tests that will indicate with absolute certainty that a man will be fertile. On the other hand, when the results of these tests are subnormal, they should not be used as an absolute diagnosis of sterility. Semen analysis is a keystone in the clinical workup of the infertile man patient.

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Assessment of Human Sperm Cells Morphological Parameters

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Abnormal sperm morphology: What does it mean? - Mayo Clinic

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Auger, P. Jouannet, F. Can a standardized assessment of abnormal human sperm morphology provide additional useful information by identifying men with more severe disturbances in different types of abnormalities?
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This article presents an update on the variable prognostic significance of different sperm pathologies in patients with severe male factor infertility due to morphology and motility disorders. Identifying structural causes of sperm immotility was of great concern before the advent of intracytoplasmic sperm injection ICSI , because immotility was the limiting factor in the treatment of these patients. In these cases, in vitro methods are used to identify live spermatozoa or stimulate sperm motility to avoid selection of non-viable cells. With these advances, fertilization and pregnancy results have improved dramatically.
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