The triangular fibrocartilage complex (TFCC) is a pivotal element in wrist biomechanics and stability on the ulnar side of the wrist. The dome-shaped TFCC is a complex structure consisting of fibrocartilaginous and ligamentous elements. This intricate structure not only stabilizes the distal radioulnar joint but also serves as a crucial load-bearing mechanism, responsible for transferring approximately 20% of the axial load across the wrist. Comprising multiple components, the TFCC includes a central, avascular cartilaginous portion—the triangular fibrocartilage—and a periphery rich in vascular ligaments acting as a series of suspension cables supporting the central shock absorbers. The peripheral elements encompass the dorsal and palmar radioulnar ligaments, ulnolunate and ulnotriquetral ligaments, the tendon sheath of the extensor carpi ulnaris muscle, and the ulnar collateral ligament. Despite its robustness, the TFCC is prone to injuries, which can be broadly categorized as traumatic or degenerative. These injuries often manifest as ulnar-sided wrist pain, instability, and clicking, potentially leading to significant disability. While traumatic TFCC injuries are more common in younger, active individuals, degenerative injuries predominate in older adults, often presenting as incidental findings in asymptomatic wrists. The high prevalence of TFCC abnormalities in both symptomatic and asymptomatic populations, particularly with advancing age, highlights the need for careful clinical assessment and a cautious approach to treatment decisions, particularly in older patients where surgical interventions may not always be necessary or beneficial. The treatments for these injuries vary from conservative to surgical. Return to sport decisions are frequently dependent on individual injury and athlete requirements rather than on consensus recommendations. Despite growing attention and recent diagnostic and treatment advancements, these injuries demonstrate an area rich in knowledge gaps, which emphasize the continued need for improved diagnostic algorithms, more refined management protocols, and more accurate outcome predictors.