👉 Piloerection is a medical procedure that involves inserting a small needle into a blood vessel to remove or treat blood clots. In this context, it refers to the process of removing small pieces of blood from the body through a small, thin needle inserted into a blood vessel. Piloection is often used in the treatment of deep vein thrombosis (DVT), which occurs when blood clots form in the veins and block the flow of blood to the legs or other parts of the