Titanium alloys like Ti-6Al-4V are indispensable to aerospace and biomedical engineering, yet their performance can be severely limited by fatigue-related failures—especially in Additive Manufacturing (AM) applications.This whitepaper examines the root causes of fatigue in AM titanium components and highlights Hot Isostatic Pressing (HIP) as a transformative solution. Through analysis of microstructural evolution, case studies, and emerging standards such as , we explore how HIP enhances fatigue life and mechanical integrity, supporting greater adoption in safety-critical industries.