Objectives: (1) To describe sperm kinetics in semen samples in infertile couples; (2) Evaluation of the
factors related to sperm kinetics. Subjects and methods: Descriptive study cross-sectional 50 semen samples
in the husband of the infertile couple. Sperm motility and kinetics were evaluated using computer-aided
sperm analysis Hamilton Thorne IVOS II. Results: The mean values of VCL, VSL, VAP, ALH in the normal
morphological group were higher than in the abnormal morphology group (p < 0.05). There were the positive
correlations between VCL (r = 0.373, p = 0.008), VSL (r = 0.343, p = 0.015), VAP (r = 0.381, p = 0.006), ALH (r
= 0.311, p = 0.028) with normal sperm morphology; and negative correlation between VCL (r = -0.286, p =
0.044) with head abnormality. The normal morphological in the group with drinking alcohol was lower than
in the group that did not drink, (p = 0.027). The neck-tail abnormality in the drinking group was higher than
in the non-drinking group (p = 0.124); The neck-tail abnormality in the smoker group was higher than in the
non-smoker group (p = 0.001). Sperm kinetics parameters (VCL, VSL, VAP, ALH, LIN, STR) recorded lower
than in the drinking and smoker group, (p > 0.05). Conclusion: Motility and kinetics are related to sperm
morphology. Sperm kinetics combines semen parameters to evaluate male fertility more totally