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Aim: To investigate whether sperm immotility can be the resultof sperm degeneration in the epididymis. Methods: Five pa-tients with totally immotile sperm were included in the study. Sper-matozoa were collected by masturbation and testicular biopsy. Thecombined swelling eosin Y exclusion test was carried out to deter-mine the sperm head and tail membrane integrity. The ultrastructureof the ejaculated sperm was examined by transmission electron mi-
Aim: To investigate whether sperm immotility can be the result of sperm degeneration in the epididymis. Methods: Five pa-tients with total immotile sperm were included in the study. Sper-matozoa were collected by masturbation and testicular biopsy. Thecombined swelling eosin Y exclusion test was carried out to deter-mine the sperm head and tail membrane integrity. The ultrastructure of the ejaculated sperm was examined by transmission electron mi-