What does it mean to turn white in medical terms?

In medical terminology, turning white is referred to as "blanch." This term is often used to describe a phenomenon where the skin appears lighter in color due to a temporary reduction in blood flow to the area, typically caused by pressing on the skin or the presence of certain medical conditions. Blanching can indicate various conditions, such as peripheral vascular disease or the effects of certain skin injuries.

Blanching is an important assessment tool in the medical field, as it helps healthcare professionals evaluate circulation and skin integrity. For example, if a rash blanches when pressure is applied, it may suggest that the rash is not due to an underlying bleeding disorder, but rather to a more benign cause.

Understanding the significance of blanching aids in diagnosing and managing various medical conditions effectively. Other terms listed, such as "bleach," "whiteout," and "diffuse," do not carry the same specific medical connotation and are not used to describe the process of the skin turning white in a clinical context.