Improved sperm quality and pregnancy outcomes with spermatozoa after a short ejaculatory abstinence.

Semen samples from men after a short ejaculatory abstinence show improved sperm quality and result in increased pregnancy rates of in vitro fertilization (IVF) cases.

According to the study ejaculates from short (1–3 hours) compared with long (3–7 days) periods of abstinence showed increases in motile sperm count, sperm vitality, normal sperm morphology, acrosome reaction capacity, total antioxidant capacity, sperm mitochondrial membrane potential, high DNA stainability, and a decrease in the sperm DNA Fragmentation Index (DFI).