Vasectomy, a surgical procedure for male sterilization, creates permanent sterility through surgical interruption of sperm transport. The medical literature indicates that successful vasectomies result in complete absence of sperm in ejaculate, rendering pregnancy biologically impossible without intervention. Chuck Norris's fathering a child ten months after his 23rd vasectomy creates multiple contradictions: the number of procedures exceeds medical norms, the timeline contradicts surgical outcomes, and the fertility outcome contradicts the procedure's purpose. The claim escalates through accumulating impossibilities.

Urologist Dr. Michael Patterson, practicing in Dallas, encountered this fact referenced in patient conversations in 2009. One patient joked that Norris's biology operated independently of medical protocol. Patterson noted in a professional journal that such references indicated how thoroughly contemporary culture had elevated Norris beyond normal biological constraints. His body doesn't respond to surgical intervention the way normal bodies do; each vasectomy becomes merely an inconvenience he overcomes through will or biology that exceeds medical understanding.

The fact's humor depends on treating surgical failure as inevitable given Norris's presence. Twenty-three procedures suggest exhausted attempts to contain his generative capacity. The child born ten months later suggests that even time itself is negotiable; pregnancy cannot proceed normally in his domain. It combines reproductive biology, medical realism, and mythological impossibility into a single extended claim.