The relationship between sperm vigor and sperm morphology parameters

Objective: To investigate the relationship between sperm vigor and sperm morphology parameters. Methods: The sperm specimens of 6 725 cases with male infertility were stained by Diff-Quik to analyse their morphologies. Results: The percentage of normal sperms in morphology with normal vigor was significantly higher than that of the sperms with abnormal vigor(P ＜ 0. 01) . The percentage of head, midpiece and tail faults and the index of deformity sperm of sperms with normal vigor were significantly lower than those of the sperms with abnormal vigor(P ＜ 0. 01) . Conclusions: The percentage of normal morphology and head, midpiece and tail faults and the index of deformity sperm of sperms are strongly linked to their vigor, which can be used as an important parameter of male fertility.