Blue toe syndrome is when one or more of a person’s toes starts to look blue or purple due to a lack of circulation or tissue ischemia. It can be painful and lead to ulcers and gangrene, in some cases ...
Purple or blue feet may be a sign of an injury or an underlying health condition, such as Raynaud’s disease, peripheral arterial disease, or frostbite. Skin can become blue or purple due to bruising, ...