This conference, dedicated to the etiology and treatment of motility disor- ders in spermatozoa and male sterility, attracted some of the finest investiga- tors in the field. Standards were immensely high throughout, and discussions were meaningful and detailed. Analyses on disorders in sperm motility de- mand a broad-based approach, involving cytologists, geneticists, andrologists, and embryologists, because the topic has many clinical and scientific over- tones. Human spermatozoa are at the mercy of so many factors as they form and mature in the testis and epididymis. Their survival and...