PVS

PVS, or Primary Vascular Spasm, is a condition where the blood vessels in a specific area suddenly constrict or tighten without an obvious reason. This narrowing reduces blood flow temporarily, which can cause symptoms like pain, coldness, or numbness in the affected area. PVS often occurs in small or medium-sized arteries, especially in the hands or fingers, and is sometimes linked to conditions like Raynaud's phenomenon. While it usually isn't dangerous, persistent or severe episodes require medical evaluation to manage symptoms and prevent complications.