Raynaud's phenomenon

Raynaud's Phenomenon is a condition that affects blood flow, usually in the fingers and toes. It occurs when small blood vessels constrict excessively in response to cold or stress, leading to color changes: affected areas may turn white or blue and feel cold or numb. As blood flow returns, they may turn red and throb. This phenomenon can be primary (without an underlying condition) or secondary to other diseases. While it can be uncomfortable, Raynaud's is generally manageable with lifestyle changes, such as keeping warm and reducing stress. In some cases, treatment may be necessary.