What does 'blanching' refer to in laser treatments?

Blanching in the context of laser treatments refers to the temporary whitening of the skin after the laser has been applied. This occurs as a result of the laser's energy causing the blood vessels close to the skin's surface to constrict, which leads to a temporary decrease in blood flow and a lightening effect on the skin's appearance. This response is a normal reaction to the treatment and is generally short-lived, with the skin returning to its natural color as blood flow resumes. Understanding this concept is essential for those undergoing laser treatments, as it helps set expectations for immediate post-treatment effects.