The time it takes to collect semen can affect semen quality. A study looked at 746 men's ejaculates to understand this link. Healthy men took less time (6 minutes) than subfertile men (7 minutes). Longer collection times were linked to lower semen quality: men with longer times had less semen, lower sperm concentration, and slower, less normal-moving sperm. Longer times were also connected to higher risks of sperm motion and shape issues. For men trying assisted reproductive technology, longer collection times were tied to more miscarriages. Overall, spending more time collecting semen may lead to poorer semen quality and higher risks of fertility issues.