Moisture-associated skin damage (MASD) is a term used to describe skin damage that is caused by prolonged exposure to moisture, such as incontinence-associated dermatitis (IAD), intertriginous dermatitis, periwound moisture-associated dermatitis and peristomal moisture-associated dermatitis. MASD is a hugely prevalent issue in hospitals and long-term care facilities (Voegeli, 2019). Studies have shown that skin tone bias exists in the diagnosis and treatment of MASD, the impact of which this paper discusses as well as how to prevent such bias while assessing and diagnosing MASD.