What is Raynaud’s phenomenon?

Raynaud’s phenomenon is when your fingers or toes get cold and change color because they don’t get enough blood.

Imagine you’re playing outside on a chilly day, and you forget to put on gloves. Your fingers start to feel numb and turn white, like they're hiding under a blanket. That's kind of what happens with Raynaud’s. The blood in your fingers or toes gets stuck for a while, so they can't warm up properly.

Your body has tiny tubes called blood vessels that help carry blood to your hands and feet. In Raynaud’s, these little tubes sometimes behave like shy kids, they shrink and close up when they're cold, limiting the blood flow. This is why your fingers or toes might feel cold, numb, or even tingly.

At first, your fingers or toes may turn white, then blue, and finally go back to their normal color when they warm up again. It's like a fun color-changing game that happens without you asking!

Sometimes, this can happen because of something else going on in the body, like a disease, but it can also be on its own.