Why the Fitzpatrick Skin Types Scale Is Facing a Modern Reckoning

The Fitzpatrick Skin Types (FST) scale has been a standard tool for classifying skin tones since its creation. Originally designed for white patients, it now includes six categories, though its limitations have become increasingly clear. While widely used in medicine and technology, the scale faces criticism for oversimplifying skin diversity and relying on subjective assessments. The FST scale was first developed with only four types, representing lighter skin tones. In 1988, types V and VI were added to account for darker skin, but the system still has flaws. Many practitioners note that self-reported skin types can be unreliable, leading to inconsistencies in treatment.

Beyond clinical use, the FST has been adopted in tech industries, including AI and machine learning. However, research shows that darker skin tones often need different approaches, such as higher doses of phototherapy. Some practitioners also lack experience in treating these skin types effectively. The scale’s broader use has raised concerns, particularly when it is incorrectly linked to race or ethnicity. In response, companies like Google are now switching to the Monk Skin Tone Scale, which better reflects real-world diversity. This shift comes as the U.S. population grows more varied due to immigration and changing demographics.

The FST remains a common reference in medicine and technology, but its shortcomings are driving change. Newer scales, such as the Monk Skin Tone Scale, aim to provide a more accurate and inclusive way to assess skin tones. These updates could lead to better treatments and fairer representation in digital applications.