When someone engages in self-harm or intentionally inflicts cuts on their skin, they may observe that the cuts turn white around the edges. This white appearance is a result of a phenomenon called "blanching" or "skin blanching."
Skin blanching occurs when pressure is applied to the skin, which temporarily interrupts blood flow to the area. The pressure causes the small blood vessels (capillaries) in the skin to constrict and narrow, reducing the amount of blood reaching the skin's surface. As a result, the skin in the affected area turns pale or white.
In the context of self-harm, when someone cuts themselves, they might inadvertently apply pressure to the skin surrounding the wound. This pressure can lead to blanching of the skin around the cut. Additionally, the act of cutting itself can cause injury to blood vessels in the skin, leading to localized vasoconstriction and blanching.
It's important to note that engaging in self-harm is a sign of significant emotional distress and should not be taken lightly. If you or someone you know is self-harming, it's crucial to seek professional help from a mental health specialist or counselor who can provide appropriate support and intervention.
If you are experiencing thoughts of self-harm or suicide, please reach out to a helpline or a mental health professional immediately. In the United States, you can contact the National Suicide Prevention Lifeline at 1-800-273-TALK (1-800-273-8255) for free and confidential support 24/7.