Peripheral cyanosis is a condition characterized by a bluish discoloration of the skin, particularly in the extremities such as the fingers and toes. This occurs when there is a decrease in oxygen levels in the blood, leading to inadequate oxygen supply to the peripheral tissues. It can be caused by various factors, including cold temperatures, poor circulation, or certain medical conditions affecting blood flow. Unlike central cyanosis, which affects the lips and tongue, peripheral cyanosis is usually not a sign of severe respiratory distress. It often resolves with warming the affected areas or improving circulation. If persistent, it may indicate underlying issues that require medical evaluation, such as heart or lung problems.